12215555

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{331}}^1$

素因数の和:419

約数の個数: 24

約数和(自身を含む): 16426032

約数和(自身を除く): 4210477

約数列:

[1, 5, 11, 55, 61, 121, 305, 331, 605, 671, 1655, 3355, 3641, 7381, 18205, 20191, 36905, 40051, 100955, 200255, 222101, 1110505, 2443111, 12215555]

約数ペア:

[(1, 12215555), (5, 2443111), (11, 1110505), (55, 222101), (61, 200255), (121, 100955), (305, 40051), (331, 36905), (605, 20191), (671, 18205), (1655, 7381), (3355, 3641)]