20782408

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{63361}}^1$

素因数の和:63408

約数の個数: 16

約数和(自身を含む): 39918060

約数和(自身を除く): 19135652

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 63361, 126722, 253444, 506888, 2597801, 5195602, 10391204, 20782408]

約数ペア:

[(1, 20782408), (2, 10391204), (4, 5195602), (8, 2597801), (41, 506888), (82, 253444), (164, 126722), (328, 63361)]