21000908042

素因数分解:

$2^1\times {\mathrm{60521}}^1\times {\mathrm{173501}}^1$

素因数の和:234024

約数の個数: 8

約数和(自身を含む): 31502064132

約数和(自身を除く): 10501156090

約数列:

[1, 2, 60521, 121042, 173501, 347002, 10500454021, 21000908042]

約数ペア:

[(1, 21000908042), (2, 10500454021), (60521, 347002), (121042, 173501)]