20443905

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23911}}^1$

素因数の和:23941

約数の個数: 24

約数和(自身を含む): 37302720

約数和(自身を除く): 16858815

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 23911, 71733, 119555, 215199, 358665, 454309, 1075995, 1362927, 2271545, 4088781, 6814635, 20443905]

約数ペア:

[(1, 20443905), (3, 6814635), (5, 4088781), (9, 2271545), (15, 1362927), (19, 1075995), (45, 454309), (57, 358665), (95, 215199), (171, 119555), (285, 71733), (855, 23911)]