21000859220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{401}}^1$

素因数の和:535

約数の個数: 288

約数和(自身を含む): 54971602560

約数和(自身を除く): 33970743340

約数列:

[1, 2, 4, 5, 10, 11, 17, 19, 20, 22, 34, 38, 44, 55, 67, 68, 76, 85, 95, 110, 121, 134, 170, 187, 190, 209, 220, 242, 268, 323, 335, 340, 374, 380, 401, 418, 484, 605, 646, 670, 737, 748, 802, 836, 935, 1045, 1139, 1210, 1273, 1292, 1340, 1474, 1604, 1615, 1870, 2005, 2057, 2090, 2278, 2299, 2420, 2546, 2948, 3230, 3553, 3685, 3740, 4010, 4114, 4180, 4411, 4556, 4598, 5092, 5695, 6365, 6460, 6817, 7106, 7370, 7619, 8020, 8107, 8228, 8822, 9196, 10285, 11390, 11495, 12529, 12730, 13634, 14003, 14212, 14740, 15238, 16214, 17644, 17765, 20570, 21641, 22055, 22780, 22990, 25058, 25460, 26867, 27268, 28006, 30476, 32428, 34085, 35530, 38095, 39083, 40535, 41140, 43282, 44110, 45980, 48521, 50116, 53734, 56012, 62645, 68170, 70015, 71060, 74987, 76190, 78166, 81070, 83809, 86564, 88220, 97042, 107468, 108205, 125290, 129523, 134335, 136340, 137819, 140030, 149974, 152380, 154033, 156332, 162140, 167618, 194084, 195415, 216410, 238051, 242605, 250580, 259046, 268670, 275638, 280060, 295537, 299948, 308066, 335236, 374935, 390830, 419045, 432820, 456739, 476102, 485210, 510473, 518092, 537340, 551276, 591074, 616132, 647615, 689095, 749870, 770165, 781660, 824857, 838090, 913478, 921899, 952204, 970420, 1020946, 1182148, 1190255, 1295230, 1378190, 1424753, 1477685, 1499740, 1540330, 1649714, 1676180, 1826956, 1843798, 2041892, 2283695, 2380510, 2552365, 2590460, 2618561, 2756380, 2849506, 2955370, 3080660, 3250907, 3299428, 3687596, 4124285, 4567390, 4609495, 4761020, 5024129, 5104730, 5237122, 5615203, 5699012, 5910740, 6501814, 7123765, 8248570, 8678041, 9134780, 9218990, 10048258, 10209460, 10474244, 11230406, 13003628, 13092805, 14247530, 15672283, 16254535, 16497140, 17356082, 18437980, 20096516, 22460812, 25120645, 26185610, 28076015, 28495060, 31344566, 32509070, 34712164, 43390205, 50241290, 52371220, 55265419, 56152030, 61767233, 62689132, 65018140, 78361415, 86780410, 95458451, 100482580, 110530838, 112304060, 123534466, 156722830, 173560820, 190916902, 221061676, 247068932, 276327095, 308836165, 313445660, 381833804, 477292255, 552654190, 617672330, 954584510, 1050042961, 1105308380, 1235344660, 1909169020, 2100085922, 4200171844, 5250214805, 10500429610, 21000859220]

約数ペア:

[(1, 21000859220), (2, 10500429610), (4, 5250214805), (5, 4200171844), (10, 2100085922), (11, 1909169020), (17, 1235344660), (19, 1105308380), (20, 1050042961), (22, 954584510), (34, 617672330), (38, 552654190), (44, 477292255), (55, 381833804), (67, 313445660), (68, 308836165), (76, 276327095), (85, 247068932), (95, 221061676), (110, 190916902), (121, 173560820), (134, 156722830), (170, 123534466), (187, 112304060), (190, 110530838), (209, 100482580), (220, 95458451), (242, 86780410), (268, 78361415), (323, 65018140), (335, 62689132), (340, 61767233), (374, 56152030), (380, 55265419), (401, 52371220), (418, 50241290), (484, 43390205), (605, 34712164), (646, 32509070), (670, 31344566), (737, 28495060), (748, 28076015), (802, 26185610), (836, 25120645), (935, 22460812), (1045, 20096516), (1139, 18437980), (1210, 17356082), (1273, 16497140), (1292, 16254535), (1340, 15672283), (1474, 14247530), (1604, 13092805), (1615, 13003628), (1870, 11230406), (2005, 10474244), (2057, 10209460), (2090, 10048258), (2278, 9218990), (2299, 9134780), (2420, 8678041), (2546, 8248570), (2948, 7123765), (3230, 6501814), (3553, 5910740), (3685, 5699012), (3740, 5615203), (4010, 5237122), (4114, 5104730), (4180, 5024129), (4411, 4761020), (4556, 4609495), (4598, 4567390), (5092, 4124285), (5695, 3687596), (6365, 3299428), (6460, 3250907), (6817, 3080660), (7106, 2955370), (7370, 2849506), (7619, 2756380), (8020, 2618561), (8107, 2590460), (8228, 2552365), (8822, 2380510), (9196, 2283695), (10285, 2041892), (11390, 1843798), (11495, 1826956), (12529, 1676180), (12730, 1649714), (13634, 1540330), (14003, 1499740), (14212, 1477685), (14740, 1424753), (15238, 1378190), (16214, 1295230), (17644, 1190255), (17765, 1182148), (20570, 1020946), (21641, 970420), (22055, 952204), (22780, 921899), (22990, 913478), (25058, 838090), (25460, 824857), (26867, 781660), (27268, 770165), (28006, 749870), (30476, 689095), (32428, 647615), (34085, 616132), (35530, 591074), (38095, 551276), (39083, 537340), (40535, 518092), (41140, 510473), (43282, 485210), (44110, 476102), (45980, 456739), (48521, 432820), (50116, 419045), (53734, 390830), (56012, 374935), (62645, 335236), (68170, 308066), (70015, 299948), (71060, 295537), (74987, 280060), (76190, 275638), (78166, 268670), (81070, 259046), (83809, 250580), (86564, 242605), (88220, 238051), (97042, 216410), (107468, 195415), (108205, 194084), (125290, 167618), (129523, 162140), (134335, 156332), (136340, 154033), (137819, 152380), (140030, 149974)]