21140145

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36137}}^1$

素因数の和:36161

約数の個数: 24

約数和(自身を含む): 39462696

約数和(自身を除く): 18322551

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 36137, 108411, 180685, 325233, 469781, 542055, 1409343, 1626165, 2348905, 4228029, 7046715, 21140145]

約数ペア:

[(1, 21140145), (3, 7046715), (5, 4228029), (9, 2348905), (13, 1626165), (15, 1409343), (39, 542055), (45, 469781), (65, 325233), (117, 180685), (195, 108411), (585, 36137)]