21749355

素因数分解:

$3^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{4517}}^1$

素因数の和:4635

約数の個数: 24

約数和(自身を含む): 38059632

約数和(自身を除く): 16310277

約数列:

[1, 3, 5, 9, 15, 45, 107, 321, 535, 963, 1605, 4517, 4815, 13551, 22585, 40653, 67755, 203265, 483319, 1449957, 2416595, 4349871, 7249785, 21749355]

約数ペア:

[(1, 21749355), (3, 7249785), (5, 4349871), (9, 2416595), (15, 1449957), (45, 483319), (107, 203265), (321, 67755), (535, 40653), (963, 22585), (1605, 13551), (4517, 4815)]