21212655

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^2\times {\mathrm{1033}}^1$

素因数の和:1115

約数の個数: 24

約数和(自身を含む): 34916112

約数和(自身を除く): 13703457

約数列:

[1, 3, 5, 15, 37, 111, 185, 555, 1033, 1369, 3099, 4107, 5165, 6845, 15495, 20535, 38221, 114663, 191105, 573315, 1414177, 4242531, 7070885, 21212655]

約数ペア:

[(1, 21212655), (3, 7070885), (5, 4242531), (15, 1414177), (37, 573315), (111, 191105), (185, 114663), (555, 38221), (1033, 20535), (1369, 15495), (3099, 6845), (4107, 5165)]