21639016

素因数分解:

$2^3\times 7^1\times {\mathrm{386411}}^1$

素因数の和:386424

約数の個数: 16

約数和(自身を含む): 46369440

約数和(自身を除く): 24730424

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 386411, 772822, 1545644, 2704877, 3091288, 5409754, 10819508, 21639016]

約数ペア:

[(1, 21639016), (2, 10819508), (4, 5409754), (7, 3091288), (8, 2704877), (14, 1545644), (28, 772822), (56, 386411)]