20998607

素因数分解:

$7^2\times {\mathrm{101}}^1\times {\mathrm{4243}}^1$

素因数の和:4358

約数の個数: 12

約数和(自身を含む): 24674616

約数和(自身を除く): 3676009

約数列:

[1, 7, 49, 101, 707, 4243, 4949, 29701, 207907, 428543, 2999801, 20998607]

約数ペア:

[(1, 20998607), (7, 2999801), (49, 428543), (101, 207907), (707, 29701), (4243, 4949)]