21000201660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{4177}}^1$

素因数の和:4293

約数の個数: 288

約数和(自身を含む): 70954071552

約数和(自身を除く): 49953869892

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 31, 34, 36, 45, 51, 53, 60, 62, 68, 85, 90, 93, 102, 106, 124, 153, 155, 159, 170, 180, 186, 204, 212, 255, 265, 279, 306, 310, 318, 340, 372, 465, 477, 510, 527, 530, 558, 612, 620, 636, 765, 795, 901, 930, 954, 1020, 1054, 1060, 1116, 1395, 1530, 1581, 1590, 1643, 1802, 1860, 1908, 2108, 2385, 2635, 2703, 2790, 3060, 3162, 3180, 3286, 3604, 4177, 4505, 4743, 4770, 4929, 5270, 5406, 5580, 6324, 6572, 7905, 8109, 8215, 8354, 9010, 9486, 9540, 9858, 10540, 10812, 12531, 13515, 14787, 15810, 16218, 16430, 16708, 18020, 18972, 19716, 20885, 23715, 24645, 25062, 27030, 27931, 29574, 31620, 32436, 32860, 37593, 40545, 41770, 47430, 49290, 50124, 54060, 55862, 59148, 62655, 71009, 73935, 75186, 81090, 83540, 83793, 94860, 98580, 111724, 125310, 129487, 139655, 142018, 147870, 150372, 162180, 167586, 187965, 213027, 221381, 250620, 251379, 258974, 279310, 284036, 295740, 335172, 355045, 375930, 388461, 418965, 426054, 442762, 502758, 517948, 558620, 639081, 647435, 664143, 710090, 751860, 776922, 837930, 852108, 885524, 1005516, 1065135, 1106905, 1165383, 1256895, 1278162, 1294870, 1328286, 1420180, 1553844, 1675860, 1942305, 1992429, 2130270, 2201279, 2213810, 2330766, 2513790, 2556324, 2589740, 2656572, 3195405, 3320715, 3763477, 3884610, 3984858, 4260540, 4402558, 4427620, 4661532, 5027580, 5826915, 6390810, 6603837, 6641430, 6862811, 7526954, 7769220, 7969716, 8805116, 9962145, 11006395, 11290431, 11653830, 12781620, 13207674, 13282860, 13725622, 15053908, 18817385, 19811511, 19924290, 20588433, 22012790, 22580862, 23307660, 26415348, 27451244, 33019185, 33871293, 34314055, 37634770, 39623022, 39848580, 41176866, 44025580, 45161724, 56452155, 61765299, 66038370, 67742586, 68628110, 75269540, 79246044, 82353732, 99057555, 102942165, 112904310, 116667787, 123530598, 132076740, 135485172, 137256220, 169356465, 198115110, 205884330, 225808620, 233335574, 247061196, 308826495, 338712930, 350003361, 396230220, 411768660, 466671148, 583338935, 617652990, 677425860, 700006722, 1050010083, 1166677870, 1235305980, 1400013444, 1750016805, 2100020166, 2333355740, 3500033610, 4200040332, 5250050415, 7000067220, 10500100830, 21000201660]

約数ペア:

[(1, 21000201660), (2, 10500100830), (3, 7000067220), (4, 5250050415), (5, 4200040332), (6, 3500033610), (9, 2333355740), (10, 2100020166), (12, 1750016805), (15, 1400013444), (17, 1235305980), (18, 1166677870), (20, 1050010083), (30, 700006722), (31, 677425860), (34, 617652990), (36, 583338935), (45, 466671148), (51, 411768660), (53, 396230220), (60, 350003361), (62, 338712930), (68, 308826495), (85, 247061196), (90, 233335574), (93, 225808620), (102, 205884330), (106, 198115110), (124, 169356465), (153, 137256220), (155, 135485172), (159, 132076740), (170, 123530598), (180, 116667787), (186, 112904310), (204, 102942165), (212, 99057555), (255, 82353732), (265, 79246044), (279, 75269540), (306, 68628110), (310, 67742586), (318, 66038370), (340, 61765299), (372, 56452155), (465, 45161724), (477, 44025580), (510, 41176866), (527, 39848580), (530, 39623022), (558, 37634770), (612, 34314055), (620, 33871293), (636, 33019185), (765, 27451244), (795, 26415348), (901, 23307660), (930, 22580862), (954, 22012790), (1020, 20588433), (1054, 19924290), (1060, 19811511), (1116, 18817385), (1395, 15053908), (1530, 13725622), (1581, 13282860), (1590, 13207674), (1643, 12781620), (1802, 11653830), (1860, 11290431), (1908, 11006395), (2108, 9962145), (2385, 8805116), (2635, 7969716), (2703, 7769220), (2790, 7526954), (3060, 6862811), (3162, 6641430), (3180, 6603837), (3286, 6390810), (3604, 5826915), (4177, 5027580), (4505, 4661532), (4743, 4427620), (4770, 4402558), (4929, 4260540), (5270, 3984858), (5406, 3884610), (5580, 3763477), (6324, 3320715), (6572, 3195405), (7905, 2656572), (8109, 2589740), (8215, 2556324), (8354, 2513790), (9010, 2330766), (9486, 2213810), (9540, 2201279), (9858, 2130270), (10540, 1992429), (10812, 1942305), (12531, 1675860), (13515, 1553844), (14787, 1420180), (15810, 1328286), (16218, 1294870), (16430, 1278162), (16708, 1256895), (18020, 1165383), (18972, 1106905), (19716, 1065135), (20885, 1005516), (23715, 885524), (24645, 852108), (25062, 837930), (27030, 776922), (27931, 751860), (29574, 710090), (31620, 664143), (32436, 647435), (32860, 639081), (37593, 558620), (40545, 517948), (41770, 502758), (47430, 442762), (49290, 426054), (50124, 418965), (54060, 388461), (55862, 375930), (59148, 355045), (62655, 335172), (71009, 295740), (73935, 284036), (75186, 279310), (81090, 258974), (83540, 251379), (83793, 250620), (94860, 221381), (98580, 213027), (111724, 187965), (125310, 167586), (129487, 162180), (139655, 150372), (142018, 147870)]