20257905

素因数分解:

$3^1\times 5^1\times {\mathrm{433}}^1\times {\mathrm{3119}}^1$

素因数の和:3560

約数の個数: 16

約数和(自身を含む): 32497920

約数和(自身を除く): 12240015

約数列:

[1, 3, 5, 15, 433, 1299, 2165, 3119, 6495, 9357, 15595, 46785, 1350527, 4051581, 6752635, 20257905]

約数ペア:

[(1, 20257905), (3, 6752635), (5, 4051581), (15, 1350527), (433, 46785), (1299, 15595), (2165, 9357), (3119, 6495)]