19891664

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{95633}}^1$

素因数の和:95654

約数の個数: 20

約数和(自身を含む): 41505156

約数和(自身を除く): 21613492

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 95633, 191266, 382532, 765064, 1243229, 1530128, 2486458, 4972916, 9945832, 19891664]

約数ペア:

[(1, 19891664), (2, 9945832), (4, 4972916), (8, 2486458), (13, 1530128), (16, 1243229), (26, 765064), (52, 382532), (104, 191266), (208, 95633)]