858609981

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{264269}}^1$

素因数の和:264313

約数の個数: 18

約数和(自身を含む): 1308929310

約数和(自身を除く): 450319329

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 264269, 792807, 2378421, 5021111, 15063333, 45189999, 95401109, 286203327, 858609981]

約数ペア:

[(1, 858609981), (3, 286203327), (9, 95401109), (19, 45189999), (57, 15063333), (171, 5021111), (361, 2378421), (1083, 792807), (3249, 264269)]