21330881

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3469}}^1$

素因数の和:3536

約数の個数: 16

約数和(自身を含む): 25650240

約数和(自身を除く): 4319359

約数列:

[1, 11, 13, 43, 143, 473, 559, 3469, 6149, 38159, 45097, 149167, 496067, 1640837, 1939171, 21330881]

約数ペア:

[(1, 21330881), (11, 1939171), (13, 1640837), (43, 496067), (143, 149167), (473, 45097), (559, 38159), (3469, 6149)]