21681310

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{2741}}^1$

素因数の和:2868

約数の個数: 32

約数和(自身を含む): 45012672

約数和(自身を除く): 23331362

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 113, 226, 565, 791, 1130, 1582, 2741, 3955, 5482, 7910, 13705, 19187, 27410, 38374, 95935, 191870, 309733, 619466, 1548665, 2168131, 3097330, 4336262, 10840655, 21681310]

約数ペア:

[(1, 21681310), (2, 10840655), (5, 4336262), (7, 3097330), (10, 2168131), (14, 1548665), (35, 619466), (70, 309733), (113, 191870), (226, 95935), (565, 38374), (791, 27410), (1130, 19187), (1582, 13705), (2741, 7910), (3955, 5482)]