21853982

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1\times {\mathrm{661}}^1$

素因数の和:995

約数の個数: 16

約数和(自身を含む): 33491904

約数和(自身を除く): 11637922

約数列:

[1, 2, 61, 122, 271, 542, 661, 1322, 16531, 33062, 40321, 80642, 179131, 358262, 10926991, 21853982]

約数ペア:

[(1, 21853982), (2, 10926991), (61, 358262), (122, 179131), (271, 80642), (542, 40321), (661, 33062), (1322, 16531)]