221720851

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{51551}}^1$

素因数の和:51602

約数の個数: 16

約数和(自身を含む): 267245568

約数和(自身を除く): 45524717

約数列:

[1, 11, 17, 23, 187, 253, 391, 4301, 51551, 567061, 876367, 1185673, 9640037, 13042403, 20156441, 221720851]

約数ペア:

[(1, 221720851), (11, 20156441), (17, 13042403), (23, 9640037), (187, 1185673), (253, 876367), (391, 567061), (4301, 51551)]