21517456

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{32801}}^1$

素因数の和:32850

約数の個数: 20

約数和(自身を含む): 42708204

約数和(自身を除く): 21190748

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 32801, 65602, 131204, 262408, 524816, 1344841, 2689682, 5379364, 10758728, 21517456]

約数ペア:

[(1, 21517456), (2, 10758728), (4, 5379364), (8, 2689682), (16, 1344841), (41, 524816), (82, 262408), (164, 131204), (328, 65602), (656, 32801)]