21889665

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{69491}}^1$

素因数の和:69509

約数の個数: 24

約数和(自身を含む): 43363008

約数和(自身を除く): 21473343

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 69491, 208473, 347455, 486437, 625419, 1042365, 1459311, 2432185, 3127095, 4377933, 7296555, 21889665]

約数ペア:

[(1, 21889665), (3, 7296555), (5, 4377933), (7, 3127095), (9, 2432185), (15, 1459311), (21, 1042365), (35, 625419), (45, 486437), (63, 347455), (105, 208473), (315, 69491)]