20643292

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{113}}^1\times {\mathrm{419}}^1$

素因数の和:645

約数の個数: 24

約数和(自身を含む): 36867600

約数和(自身を除く): 16224308

約数列:

[1, 2, 4, 109, 113, 218, 226, 419, 436, 452, 838, 1676, 12317, 24634, 45671, 47347, 49268, 91342, 94694, 182684, 189388, 5160823, 10321646, 20643292]

約数ペア:

[(1, 20643292), (2, 10321646), (4, 5160823), (109, 189388), (113, 182684), (218, 94694), (226, 91342), (419, 49268), (436, 47347), (452, 45671), (838, 24634), (1676, 12317)]