19491901

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4397}}^1$

素因数の和:4452

約数の個数: 16

約数和(自身を含む): 23643648

約数和(自身を除く): 4151747

約数列:

[1, 11, 13, 31, 143, 341, 403, 4397, 4433, 48367, 57161, 136307, 628771, 1499377, 1771991, 19491901]

約数ペア:

[(1, 19491901), (11, 1771991), (13, 1499377), (31, 628771), (143, 136307), (341, 57161), (403, 48367), (4397, 4433)]