21352624

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{9601}}^1$

素因数の和:9748

約数の個数: 20

約数和(自身を含む): 41672680

約数和(自身を除く): 20320056

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 9601, 19202, 38404, 76808, 153616, 1334539, 2669078, 5338156, 10676312, 21352624]

約数ペア:

[(1, 21352624), (2, 10676312), (4, 5338156), (8, 2669078), (16, 1334539), (139, 153616), (278, 76808), (556, 38404), (1112, 19202), (2224, 9601)]