21512876

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{69847}}^1$

素因数の和:69869

約数の個数: 24

約数和(自身を含む): 46937856

約数和(自身を除く): 25424980

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 69847, 139694, 279388, 488929, 768317, 977858, 1536634, 1955716, 3073268, 5378219, 10756438, 21512876]

約数ペア:

[(1, 21512876), (2, 10756438), (4, 5378219), (7, 3073268), (11, 1955716), (14, 1536634), (22, 977858), (28, 768317), (44, 488929), (77, 279388), (154, 139694), (308, 69847)]