21816867

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{3191}}^1$

素因数の和:3290

約数の個数: 16

約数和(自身を含む): 30336768

約数和(自身を除く): 8519901

約数列:

[1, 3, 43, 53, 129, 159, 2279, 3191, 6837, 9573, 137213, 169123, 411639, 507369, 7272289, 21816867]

約数ペア:

[(1, 21816867), (3, 7272289), (43, 507369), (53, 411639), (129, 169123), (159, 137213), (2279, 9573), (3191, 6837)]