20158916

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{117203}}^1$

素因数の和:117250

約数の個数: 12

約数和(自身を含む): 36098832

約数和(自身を除く): 15939916

約数列:

[1, 2, 4, 43, 86, 172, 117203, 234406, 468812, 5039729, 10079458, 20158916]

約数ペア:

[(1, 20158916), (2, 10079458), (4, 5039729), (43, 468812), (86, 234406), (172, 117203)]