21992569991

素因数分解:

$7^2\times {\mathrm{103}}^1\times {\mathrm{1279}}^1\times {\mathrm{3407}}^1$

素因数の和:4803

約数の個数: 24

約数和(自身を含む): 25859358720

約数和(自身を除く): 3866788729

約数列:

[1, 7, 49, 103, 721, 1279, 3407, 5047, 8953, 23849, 62671, 131737, 166943, 350921, 922159, 2456447, 4357553, 6455113, 17195129, 30502871, 213520097, 448827959, 3141795713, 21992569991]

約数ペア:

[(1, 21992569991), (7, 3141795713), (49, 448827959), (103, 213520097), (721, 30502871), (1279, 17195129), (3407, 6455113), (5047, 4357553), (8953, 2456447), (23849, 922159), (62671, 350921), (131737, 166943)]