21027419

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{25243}}^1$

素因数の和:25274

約数の個数: 12

約数和(自身を含む): 25900344

約数和(自身を除く): 4872925

約数列:

[1, 7, 17, 49, 119, 833, 25243, 176701, 429131, 1236907, 3003917, 21027419]

約数ペア:

[(1, 21027419), (7, 3003917), (17, 1236907), (49, 429131), (119, 176701), (833, 25243)]