18986566

素因数分解:

$2^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1\times {\mathrm{419}}^1$

素因数の和:723

約数の個数: 16

約数和(自身を含む): 28929600

約数和(自身を除く): 9943034

約数列:

[1, 2, 139, 163, 278, 326, 419, 838, 22657, 45314, 58241, 68297, 116482, 136594, 9493283, 18986566]

約数ペア:

[(1, 18986566), (2, 9493283), (139, 136594), (163, 116482), (278, 68297), (326, 58241), (419, 45314), (838, 22657)]