21347810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{194071}}^1$

素因数の和:194089

約数の個数: 16

約数和(自身を含む): 41919552

約数和(自身を除く): 20571742

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 194071, 388142, 970355, 1940710, 2134781, 4269562, 10673905, 21347810]

約数ペア:

[(1, 21347810), (2, 10673905), (5, 4269562), (10, 2134781), (11, 1940710), (22, 970355), (55, 388142), (110, 194071)]