21308221

素因数分解:

${\mathrm{11}}^2\times {\mathrm{229}}^1\times {\mathrm{769}}^1$

素因数の和:1020

約数の個数: 12

約数和(自身を含む): 23554300

約数和(自身を除く): 2246079

約数列:

[1, 11, 121, 229, 769, 2519, 8459, 27709, 93049, 176101, 1937111, 21308221]

約数ペア:

[(1, 21308221), (11, 1937111), (121, 176101), (229, 93049), (769, 27709), (2519, 8459)]