21780638

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{58237}}^1$

素因数の和:58267

約数の個数: 16

約数和(自身を含む): 37738224

約数和(自身を除く): 15957586

約数列:

[1, 2, 11, 17, 22, 34, 187, 374, 58237, 116474, 640607, 990029, 1281214, 1980058, 10890319, 21780638]

約数ペア:

[(1, 21780638), (2, 10890319), (11, 1980058), (17, 1281214), (22, 990029), (34, 640607), (187, 116474), (374, 58237)]