12215205

素因数分解:

$3^4\times 5^1\times {\mathrm{30161}}^1$

素因数の和:30178

約数の個数: 20

約数和(自身を含む): 21897612

約数和(自身を除く): 9682407

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 30161, 90483, 150805, 271449, 452415, 814347, 1357245, 2443041, 4071735, 12215205]

約数ペア:

[(1, 12215205), (3, 4071735), (5, 2443041), (9, 1357245), (15, 814347), (27, 452415), (45, 271449), (81, 150805), (135, 90483), (405, 30161)]