239822

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{991}}^1$

素因数の和:1015

約数の個数: 12

約数和(自身を含む): 395808

約数和(自身を除く): 155986

約数列:

[1, 2, 11, 22, 121, 242, 991, 1982, 10901, 21802, 119911, 239822]

約数ペア:

[(1, 239822), (2, 119911), (11, 21802), (22, 10901), (121, 1982), (242, 991)]