21658621

素因数分解:

${\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:324

約数の個数: 16

約数和(自身を含む): 23207040

約数和(自身を除く): 1548419

約数列:

[1, 29, 67, 71, 157, 1943, 2059, 4553, 4757, 10519, 11147, 137953, 305051, 323263, 746849, 21658621]

約数ペア:

[(1, 21658621), (29, 746849), (67, 323263), (71, 305051), (157, 137953), (1943, 11147), (2059, 10519), (4553, 4757)]