20979766

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{307}}^1\times {\mathrm{727}}^1$

素因数の和:1083

約数の個数: 16

約数和(自身を含む): 32288256

約数和(自身を除く): 11308490

約数列:

[1, 2, 47, 94, 307, 614, 727, 1454, 14429, 28858, 34169, 68338, 223189, 446378, 10489883, 20979766]

約数ペア:

[(1, 20979766), (2, 10489883), (47, 446378), (94, 223189), (307, 68338), (614, 34169), (727, 28858), (1454, 14429)]