21750345

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{25439}}^1$

素因数の和:25469

約数の個数: 24

約数和(自身を含む): 39686400

約数和(自身を除く): 17936055

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 25439, 76317, 127195, 228951, 381585, 483341, 1144755, 1450023, 2416705, 4350069, 7250115, 21750345]

約数ペア:

[(1, 21750345), (3, 7250115), (5, 4350069), (9, 2416705), (15, 1450023), (19, 1144755), (45, 483341), (57, 381585), (95, 228951), (171, 127195), (285, 76317), (855, 25439)]