21071765

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{2267}}^1$

素因数の和:2309

約数の個数: 24

約数和(自身を含む): 29883168

約数和(自身を除く): 8811403

約数列:

[1, 5, 11, 13, 55, 65, 143, 169, 715, 845, 1859, 2267, 9295, 11335, 24937, 29471, 124685, 147355, 324181, 383123, 1620905, 1915615, 4214353, 21071765]

約数ペア:

[(1, 21071765), (5, 4214353), (11, 1915615), (13, 1620905), (55, 383123), (65, 324181), (143, 147355), (169, 124685), (715, 29471), (845, 24937), (1859, 11335), (2267, 9295)]