81661214

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1\times {\mathrm{2441}}^1$

素因数の和:2875

約数の個数: 16

約数和(自身を含む): 125714160

約数和(自身を除く): 44052946

約数列:

[1, 2, 43, 86, 389, 778, 2441, 4882, 16727, 33454, 104963, 209926, 949549, 1899098, 40830607, 81661214]

約数ペア:

[(1, 81661214), (2, 40830607), (43, 1899098), (86, 949549), (389, 209926), (778, 104963), (2441, 33454), (4882, 16727)]