21256504

素因数分解:

$2^3\times {\mathrm{163}}^1\times {\mathrm{16301}}^1$

素因数の和:16470

約数の個数: 16

約数和(自身を含む): 40102920

約数和(自身を除く): 18846416

約数列:

[1, 2, 4, 8, 163, 326, 652, 1304, 16301, 32602, 65204, 130408, 2657063, 5314126, 10628252, 21256504]

約数ペア:

[(1, 21256504), (2, 10628252), (4, 5314126), (8, 2657063), (163, 130408), (326, 65204), (652, 32602), (1304, 16301)]