2161395

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1117}}^1$

素因数の和:1171

約数の個数: 24

約数和(自身を含む): 3836976

約数和(自身を除く): 1675581

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1117, 1935, 3351, 5585, 10053, 16755, 48031, 50265, 144093, 240155, 432279, 720465, 2161395]

約数ペア:

[(1, 2161395), (3, 720465), (5, 432279), (9, 240155), (15, 144093), (43, 50265), (45, 48031), (129, 16755), (215, 10053), (387, 5585), (645, 3351), (1117, 1935)]