20820848

素因数分解:

$2^4\times {\mathrm{569}}^1\times {\mathrm{2287}}^1$

素因数の和:2864

約数の個数: 20

約数和(自身を含む): 40428960

約数和(自身を除く): 19608112

約数列:

[1, 2, 4, 8, 16, 569, 1138, 2276, 2287, 4552, 4574, 9104, 9148, 18296, 36592, 1301303, 2602606, 5205212, 10410424, 20820848]

約数ペア:

[(1, 20820848), (2, 10410424), (4, 5205212), (8, 2602606), (16, 1301303), (569, 36592), (1138, 18296), (2276, 9148), (2287, 9104), (4552, 4574)]