21561668

素因数分解:

$2^2\times {\mathrm{59}}^1\times {\mathrm{211}}^1\times {\mathrm{433}}^1$

素因数の和:707

約数の個数: 24

約数和(自身を含む): 38643360

約数和(自身を除く): 17081692

約数列:

[1, 2, 4, 59, 118, 211, 236, 422, 433, 844, 866, 1732, 12449, 24898, 25547, 49796, 51094, 91363, 102188, 182726, 365452, 5390417, 10780834, 21561668]

約数ペア:

[(1, 21561668), (2, 10780834), (4, 5390417), (59, 365452), (118, 182726), (211, 102188), (236, 91363), (422, 51094), (433, 49796), (844, 25547), (866, 24898), (1732, 12449)]