19747774

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{1031}}^1$

素因数の和:1251

約数の個数: 16

約数和(自身を含む): 30328416

約数和(自身を除く): 10580642

約数列:

[1, 2, 61, 122, 157, 314, 1031, 2062, 9577, 19154, 62891, 125782, 161867, 323734, 9873887, 19747774]

約数ペア:

[(1, 19747774), (2, 9873887), (61, 323734), (122, 161867), (157, 125782), (314, 62891), (1031, 19154), (2062, 9577)]