20138565213

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{2178791}}^1$

素因数の和:2178889

約数の個数: 24

約数和(自身を含む): 31723211520

約数和(自身を除く): 11584646307

約数列:

[1, 3, 9, 13, 39, 79, 117, 237, 711, 1027, 3081, 9243, 2178791, 6536373, 19609119, 28324283, 84972849, 172124489, 254918547, 516373467, 1549120401, 2237618357, 6712855071, 20138565213]

約数ペア:

[(1, 20138565213), (3, 6712855071), (9, 2237618357), (13, 1549120401), (39, 516373467), (79, 254918547), (117, 172124489), (237, 84972849), (711, 28324283), (1027, 19609119), (3081, 6536373), (9243, 2178791)]