21000425460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{8867}}^1\times {\mathrm{5639}}^1$

素因数の和:14525

約数の個数: 96

約数和(自身を含む): 67220858880

約数和(自身を除く): 46220433420

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 5639, 8867, 11278, 16917, 17734, 22556, 26601, 28195, 33834, 35468, 39473, 44335, 53202, 56390, 62069, 67668, 78946, 84585, 88670, 106404, 112780, 118419, 124138, 133005, 157892, 169170, 177340, 186207, 197365, 236838, 248276, 266010, 310345, 338340, 372414, 394730, 473676, 532020, 592095, 620690, 744828, 789460, 931035, 1184190, 1241380, 1862070, 2368380, 3724140, 50001013, 100002026, 150003039, 200004052, 250005065, 300006078, 350007091, 500010130, 600012156, 700014182, 750015195, 1000020260, 1050021273, 1400028364, 1500030390, 1750035455, 2100042546, 3000060780, 3500070910, 4200085092, 5250106365, 7000141820, 10500212730, 21000425460]

約数ペア:

[(1, 21000425460), (2, 10500212730), (3, 7000141820), (4, 5250106365), (5, 4200085092), (6, 3500070910), (7, 3000060780), (10, 2100042546), (12, 1750035455), (14, 1500030390), (15, 1400028364), (20, 1050021273), (21, 1000020260), (28, 750015195), (30, 700014182), (35, 600012156), (42, 500010130), (60, 350007091), (70, 300006078), (84, 250005065), (105, 200004052), (140, 150003039), (210, 100002026), (420, 50001013), (5639, 3724140), (8867, 2368380), (11278, 1862070), (16917, 1241380), (17734, 1184190), (22556, 931035), (26601, 789460), (28195, 744828), (33834, 620690), (35468, 592095), (39473, 532020), (44335, 473676), (53202, 394730), (56390, 372414), (62069, 338340), (67668, 310345), (78946, 266010), (84585, 248276), (88670, 236838), (106404, 197365), (112780, 186207), (118419, 177340), (124138, 169170), (133005, 157892)]