20449905

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{27823}}^1$

素因数の和:27845

約数の個数: 24

約数和(自身を含む): 38063232

約数和(自身を除く): 17613327

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 27823, 83469, 139115, 194761, 417345, 584283, 973805, 1363327, 2921415, 4089981, 6816635, 20449905]

約数ペア:

[(1, 20449905), (3, 6816635), (5, 4089981), (7, 2921415), (15, 1363327), (21, 973805), (35, 584283), (49, 417345), (105, 194761), (147, 139115), (245, 83469), (735, 27823)]