18646654

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{42187}}^1$

素因数の和:42219

約数の個数: 16

約数和(自身を含む): 31894128

約数和(自身を除く): 13247474

約数列:

[1, 2, 13, 17, 26, 34, 221, 442, 42187, 84374, 548431, 717179, 1096862, 1434358, 9323327, 18646654]

約数ペア:

[(1, 18646654), (2, 9323327), (13, 1434358), (17, 1096862), (26, 717179), (34, 548431), (221, 84374), (442, 42187)]