18728968

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{137713}}^1$

素因数の和:137736

約数の個数: 16

約数和(自身を含む): 37182780

約数和(自身を除く): 18453812

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 137713, 275426, 550852, 1101704, 2341121, 4682242, 9364484, 18728968]

約数ペア:

[(1, 18728968), (2, 9364484), (4, 4682242), (8, 2341121), (17, 1101704), (34, 550852), (68, 275426), (136, 137713)]