21556936

素因数分解:

$2^3\times {\mathrm{313}}^1\times {\mathrm{8609}}^1$

素因数の和:8928

約数の個数: 16

約数和(自身を含む): 40553100

約数和(自身を除く): 18996164

約数列:

[1, 2, 4, 8, 313, 626, 1252, 2504, 8609, 17218, 34436, 68872, 2694617, 5389234, 10778468, 21556936]

約数ペア:

[(1, 21556936), (2, 10778468), (4, 5389234), (8, 2694617), (313, 68872), (626, 34436), (1252, 17218), (2504, 8609)]