18857896

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{138661}}^1$

素因数の和:138684

約数の個数: 16

約数和(自身を含む): 37438740

約数和(自身を除く): 18580844

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 138661, 277322, 554644, 1109288, 2357237, 4714474, 9428948, 18857896]

約数ペア:

[(1, 18857896), (2, 9428948), (4, 4714474), (8, 2357237), (17, 1109288), (34, 554644), (68, 277322), (136, 138661)]