21810005

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{32797}}^1$

素因数の和:32828

約数の個数: 16

約数和(自身を含む): 31486080

約数和(自身を除く): 9676075

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 32797, 163985, 229579, 623143, 1147895, 3115715, 4362001, 21810005]

約数ペア:

[(1, 21810005), (5, 4362001), (7, 3115715), (19, 1147895), (35, 623143), (95, 229579), (133, 163985), (665, 32797)]