638750554

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1445137}}^1$

素因数の和:1445169

約数の個数: 16

約数和(自身を含む): 1092524328

約数和(自身を除く): 453773774

約数列:

[1, 2, 13, 17, 26, 34, 221, 442, 1445137, 2890274, 18786781, 24567329, 37573562, 49134658, 319375277, 638750554]

約数ペア:

[(1, 638750554), (2, 319375277), (13, 49134658), (17, 37573562), (26, 24567329), (34, 18786781), (221, 2890274), (442, 1445137)]