20665275

素因数分解:

$3^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{4517}}^1$

素因数の和:4591

約数の個数: 24

約数和(自身を含む): 34734384

約数和(自身を除く): 14069109

約数列:

[1, 3, 5, 15, 25, 61, 75, 183, 305, 915, 1525, 4517, 4575, 13551, 22585, 67755, 112925, 275537, 338775, 826611, 1377685, 4133055, 6888425, 20665275]

約数ペア:

[(1, 20665275), (3, 6888425), (5, 4133055), (15, 1377685), (25, 826611), (61, 338775), (75, 275537), (183, 112925), (305, 67755), (915, 22585), (1525, 13551), (4517, 4575)]