19725512

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{22621}}^1$

素因数の和:22736

約数の個数: 16

約数和(自身を含む): 37326300

約数和(自身を除く): 17600788

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 22621, 45242, 90484, 180968, 2465689, 4931378, 9862756, 19725512]

約数ペア:

[(1, 19725512), (2, 9862756), (4, 4931378), (8, 2465689), (109, 180968), (218, 90484), (436, 45242), (872, 22621)]