21206588

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{8677}}^1$

素因数の和:8741

約数の個数: 24

約数和(自身を含む): 40821312

約数和(自身を除く): 19614724

約数列:

[1, 2, 4, 13, 26, 47, 52, 94, 188, 611, 1222, 2444, 8677, 17354, 34708, 112801, 225602, 407819, 451204, 815638, 1631276, 5301647, 10603294, 21206588]

約数ペア:

[(1, 21206588), (2, 10603294), (4, 5301647), (13, 1631276), (26, 815638), (47, 451204), (52, 407819), (94, 225602), (188, 112801), (611, 34708), (1222, 17354), (2444, 8677)]