21890458

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{17401}}^1$

素因数の和:17457

約数の個数: 16

約数和(自身を含む): 35708904

約数和(自身を除く): 13818446

約数列:

[1, 2, 17, 34, 37, 74, 629, 1258, 17401, 34802, 295817, 591634, 643837, 1287674, 10945229, 21890458]

約数ペア:

[(1, 21890458), (2, 10945229), (17, 1287674), (34, 643837), (37, 591634), (74, 295817), (629, 34802), (1258, 17401)]