15990291

素因数分解:

$3^4\times {\mathrm{113}}^1\times {\mathrm{1747}}^1$

素因数の和:1872

約数の個数: 20

約数和(自身を含む): 24111912

約数和(自身を除く): 8121621

約数列:

[1, 3, 9, 27, 81, 113, 339, 1017, 1747, 3051, 5241, 9153, 15723, 47169, 141507, 197411, 592233, 1776699, 5330097, 15990291]

約数ペア:

[(1, 15990291), (3, 5330097), (9, 1776699), (27, 592233), (81, 197411), (113, 141507), (339, 47169), (1017, 15723), (1747, 9153), (3051, 5241)]