1390291238

素因数分解:

$2^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{470647}}^1$

素因数の和:470867

約数の個数: 16

約数和(自身を含む): 2394657024

約数和(自身を除く): 1004365786

約数列:

[1, 2, 7, 14, 211, 422, 1477, 2954, 470647, 941294, 3294529, 6589058, 99306517, 198613034, 695145619, 1390291238]

約数ペア:

[(1, 1390291238), (2, 695145619), (7, 198613034), (14, 99306517), (211, 6589058), (422, 3294529), (1477, 941294), (2954, 470647)]