20525953

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{601}}^1$

素因数の和:673

約数の個数: 24

約数和(自身を含む): 25941384

約数和(自身を除く): 5415431

約数列:

[1, 7, 17, 41, 49, 119, 287, 601, 697, 833, 2009, 4207, 4879, 10217, 24641, 29449, 34153, 71519, 172487, 418897, 500633, 1207409, 2932279, 20525953]

約数ペア:

[(1, 20525953), (7, 2932279), (17, 1207409), (41, 500633), (49, 418897), (119, 172487), (287, 71519), (601, 34153), (697, 29449), (833, 24641), (2009, 10217), (4207, 4879)]