20147057

素因数分解:

$7^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{433}}^1$

素因数の和:497

約数の個数: 24

約数和(自身を含む): 25581696

約数和(自身を除く): 5434639

約数列:

[1, 7, 17, 23, 119, 161, 289, 391, 433, 2023, 2737, 3031, 6647, 7361, 9959, 46529, 51527, 69713, 125137, 169303, 875959, 1185121, 2878151, 20147057]

約数ペア:

[(1, 20147057), (7, 2878151), (17, 1185121), (23, 875959), (119, 169303), (161, 125137), (289, 69713), (391, 51527), (433, 46529), (2023, 9959), (2737, 7361), (3031, 6647)]