18885885

素因数分解:

$3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{11551}}^1$

素因数の和:11668

約数の個数: 16

約数和(自身を含む): 30497280

約数和(自身を除く): 11611395

約数列:

[1, 3, 5, 15, 109, 327, 545, 1635, 11551, 34653, 57755, 173265, 1259059, 3777177, 6295295, 18885885]

約数ペア:

[(1, 18885885), (3, 6295295), (5, 3777177), (15, 1259059), (109, 173265), (327, 57755), (545, 34653), (1635, 11551)]