20485448

素因数分解:

$2^3\times {\mathrm{1109}}^1\times {\mathrm{2309}}^1$

素因数の和:3424

約数の個数: 16

約数和(自身を含む): 38461500

約数和(自身を除く): 17976052

約数列:

[1, 2, 4, 8, 1109, 2218, 2309, 4436, 4618, 8872, 9236, 18472, 2560681, 5121362, 10242724, 20485448]

約数ペア:

[(1, 20485448), (2, 10242724), (4, 5121362), (8, 2560681), (1109, 18472), (2218, 9236), (2309, 8872), (4436, 4618)]