123986491

素因数分解:

${\mathrm{17}}^2\times {\mathrm{23}}^2\times {\mathrm{811}}^1$

素因数の和:891

約数の個数: 18

約数和(自身を含む): 137854052

約数和(自身を除く): 13867561

約数列:

[1, 17, 23, 289, 391, 529, 811, 6647, 8993, 13787, 18653, 152881, 234379, 317101, 429019, 5390717, 7293323, 123986491]

約数ペア:

[(1, 123986491), (17, 7293323), (23, 5390717), (289, 429019), (391, 317101), (529, 234379), (811, 152881), (6647, 18653), (8993, 13787)]