21120022

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137143}}^1$

素因数の和:137163

約数の個数: 16

約数和(自身を含む): 39497472

約数和(自身を除く): 18377450

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 137143, 274286, 960001, 1508573, 1920002, 3017146, 10560011, 21120022]

約数ペア:

[(1, 21120022), (2, 10560011), (7, 3017146), (11, 1920002), (14, 1508573), (22, 960001), (77, 274286), (154, 137143)]