20864408

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{63611}}^1$

素因数の和:63658

約数の個数: 16

約数和(自身を含む): 40075560

約数和(自身を除く): 19211152

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 63611, 127222, 254444, 508888, 2608051, 5216102, 10432204, 20864408]

約数ペア:

[(1, 20864408), (2, 10432204), (4, 5216102), (8, 2608051), (41, 508888), (82, 254444), (164, 127222), (328, 63611)]