21416040

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:168

約数の個数: 192

約数和(自身を含む): 76377600

約数和(自身を除く): 54961560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 31, 36, 38, 40, 45, 57, 60, 62, 72, 76, 90, 93, 95, 101, 114, 120, 124, 152, 155, 171, 180, 186, 190, 202, 228, 248, 279, 285, 303, 310, 342, 360, 372, 380, 404, 456, 465, 505, 558, 570, 589, 606, 620, 684, 744, 760, 808, 855, 909, 930, 1010, 1116, 1140, 1178, 1212, 1240, 1368, 1395, 1515, 1710, 1767, 1818, 1860, 1919, 2020, 2232, 2280, 2356, 2424, 2790, 2945, 3030, 3131, 3420, 3534, 3636, 3720, 3838, 4040, 4545, 4712, 5301, 5580, 5757, 5890, 6060, 6262, 6840, 7068, 7272, 7676, 8835, 9090, 9393, 9595, 10602, 11160, 11514, 11780, 12120, 12524, 14136, 15352, 15655, 17271, 17670, 18180, 18786, 19190, 21204, 23028, 23560, 25048, 26505, 28179, 28785, 31310, 34542, 35340, 36360, 37572, 38380, 42408, 46056, 46965, 53010, 56358, 57570, 59489, 62620, 69084, 70680, 75144, 76760, 86355, 93930, 106020, 112716, 115140, 118978, 125240, 138168, 140895, 172710, 178467, 187860, 212040, 225432, 230280, 237956, 281790, 297445, 345420, 356934, 375720, 475912, 535401, 563580, 594890, 690840, 713868, 892335, 1070802, 1127160, 1189780, 1427736, 1784670, 2141604, 2379560, 2677005, 3569340, 4283208, 5354010, 7138680, 10708020, 21416040]

約数ペア:

[(1, 21416040), (2, 10708020), (3, 7138680), (4, 5354010), (5, 4283208), (6, 3569340), (8, 2677005), (9, 2379560), (10, 2141604), (12, 1784670), (15, 1427736), (18, 1189780), (19, 1127160), (20, 1070802), (24, 892335), (30, 713868), (31, 690840), (36, 594890), (38, 563580), (40, 535401), (45, 475912), (57, 375720), (60, 356934), (62, 345420), (72, 297445), (76, 281790), (90, 237956), (93, 230280), (95, 225432), (101, 212040), (114, 187860), (120, 178467), (124, 172710), (152, 140895), (155, 138168), (171, 125240), (180, 118978), (186, 115140), (190, 112716), (202, 106020), (228, 93930), (248, 86355), (279, 76760), (285, 75144), (303, 70680), (310, 69084), (342, 62620), (360, 59489), (372, 57570), (380, 56358), (404, 53010), (456, 46965), (465, 46056), (505, 42408), (558, 38380), (570, 37572), (589, 36360), (606, 35340), (620, 34542), (684, 31310), (744, 28785), (760, 28179), (808, 26505), (855, 25048), (909, 23560), (930, 23028), (1010, 21204), (1116, 19190), (1140, 18786), (1178, 18180), (1212, 17670), (1240, 17271), (1368, 15655), (1395, 15352), (1515, 14136), (1710, 12524), (1767, 12120), (1818, 11780), (1860, 11514), (1919, 11160), (2020, 10602), (2232, 9595), (2280, 9393), (2356, 9090), (2424, 8835), (2790, 7676), (2945, 7272), (3030, 7068), (3131, 6840), (3420, 6262), (3534, 6060), (3636, 5890), (3720, 5757), (3838, 5580), (4040, 5301), (4545, 4712)]