22221221

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{1699}}^1$

素因数の和:1780

約数の個数: 16

約数和(自身を含む): 25704000

約数和(自身を除く): 3482779

約数列:

[1, 11, 29, 41, 319, 451, 1189, 1699, 13079, 18689, 49271, 69659, 541981, 766249, 2020111, 22221221]

約数ペア:

[(1, 22221221), (11, 2020111), (29, 766249), (41, 541981), (319, 69659), (451, 49271), (1189, 18689), (1699, 13079)]