21375530

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{194323}}^1$

素因数の和:194341

約数の個数: 16

約数和(自身を含む): 41973984

約数和(自身を除く): 20598454

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 194323, 388646, 971615, 1943230, 2137553, 4275106, 10687765, 21375530]

約数ペア:

[(1, 21375530), (2, 10687765), (5, 4275106), (10, 2137553), (11, 1943230), (22, 971615), (55, 388646), (110, 194323)]