20404439

素因数分解:

${\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{647}}^1$

素因数の和:766

約数の個数: 16

約数和(自身を含む): 23141376

約数和(自身を除く): 2736937

約数列:

[1, 11, 47, 61, 517, 647, 671, 2867, 7117, 30409, 31537, 39467, 334499, 434137, 1854949, 20404439]

約数ペア:

[(1, 20404439), (11, 1854949), (47, 434137), (61, 334499), (517, 39467), (647, 31537), (671, 30409), (2867, 7117)]