21964185

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{11351}}^1$

素因数の和:11405

約数の個数: 24

約数和(自身を含む): 38960064

約数和(自身を除く): 16995879

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 11351, 34053, 56755, 102159, 170265, 488093, 510795, 1464279, 2440465, 4392837, 7321395, 21964185]

約数ペア:

[(1, 21964185), (3, 7321395), (5, 4392837), (9, 2440465), (15, 1464279), (43, 510795), (45, 488093), (129, 170265), (215, 102159), (387, 56755), (645, 34053), (1935, 11351)]