21160264

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{64513}}^1$

素因数の和:64560

約数の個数: 16

約数和(自身を含む): 40643820

約数和(自身を除く): 19483556

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 64513, 129026, 258052, 516104, 2645033, 5290066, 10580132, 21160264]

約数ペア:

[(1, 21160264), (2, 10580132), (4, 5290066), (8, 2645033), (41, 516104), (82, 258052), (164, 129026), (328, 64513)]