21154920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{6079}}^1$

素因数の和:6122

約数の個数: 64

約数和(自身を含む): 65664000

約数和(自身を除く): 44509080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 58, 60, 87, 116, 120, 145, 174, 232, 290, 348, 435, 580, 696, 870, 1160, 1740, 3480, 6079, 12158, 18237, 24316, 30395, 36474, 48632, 60790, 72948, 91185, 121580, 145896, 176291, 182370, 243160, 352582, 364740, 528873, 705164, 729480, 881455, 1057746, 1410328, 1762910, 2115492, 2644365, 3525820, 4230984, 5288730, 7051640, 10577460, 21154920]

約数ペア:

[(1, 21154920), (2, 10577460), (3, 7051640), (4, 5288730), (5, 4230984), (6, 3525820), (8, 2644365), (10, 2115492), (12, 1762910), (15, 1410328), (20, 1057746), (24, 881455), (29, 729480), (30, 705164), (40, 528873), (58, 364740), (60, 352582), (87, 243160), (116, 182370), (120, 176291), (145, 145896), (174, 121580), (232, 91185), (290, 72948), (348, 60790), (435, 48632), (580, 36474), (696, 30395), (870, 24316), (1160, 18237), (1740, 12158), (3480, 6079)]