18776871

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{499}}^1$

素因数の和:655

約数の個数: 24

約数和(自身を含む): 28158000

約数和(自身を除く): 9381129

約数列:

[1, 3, 9, 37, 111, 113, 333, 339, 499, 1017, 1497, 4181, 4491, 12543, 18463, 37629, 55389, 56387, 166167, 169161, 507483, 2086319, 6258957, 18776871]

約数ペア:

[(1, 18776871), (3, 6258957), (9, 2086319), (37, 507483), (111, 169161), (113, 166167), (333, 56387), (339, 55389), (499, 37629), (1017, 18463), (1497, 12543), (4181, 4491)]