18215325

素因数分解:

$3^2\times 5^2\times {\mathrm{73}}^1\times {\mathrm{1109}}^1$

素因数の和:1198

約数の個数: 36

約数和(自身を含む): 33102420

約数和(自身を除く): 14887095

約数列:

[1, 3, 5, 9, 15, 25, 45, 73, 75, 219, 225, 365, 657, 1095, 1109, 1825, 3285, 3327, 5475, 5545, 9981, 16425, 16635, 27725, 49905, 80957, 83175, 242871, 249525, 404785, 728613, 1214355, 2023925, 3643065, 6071775, 18215325]

約数ペア:

[(1, 18215325), (3, 6071775), (5, 3643065), (9, 2023925), (15, 1214355), (25, 728613), (45, 404785), (73, 249525), (75, 242871), (219, 83175), (225, 80957), (365, 49905), (657, 27725), (1095, 16635), (1109, 16425), (1825, 9981), (3285, 5545), (3327, 5475)]