18690295

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{683}}^1$

素因数の和:1122

約数の個数: 16

約数和(自身を含む): 24246432

約数和(自身を除く): 5556137

約数列:

[1, 5, 13, 65, 421, 683, 2105, 3415, 5473, 8879, 27365, 44395, 287543, 1437715, 3738059, 18690295]

約数ペア:

[(1, 18690295), (5, 3738059), (13, 1437715), (65, 287543), (421, 44395), (683, 27365), (2105, 8879), (3415, 5473)]