20187172047

素因数分解:

$3^1\times 7^3\times {\mathrm{19618243}}^1$

素因数の和:19618267

約数の個数: 16

約数和(自身を含む): 31389190400

約数和(自身を除く): 11202018353

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 19618243, 58854729, 137327701, 411983103, 961293907, 2883881721, 6729057349, 20187172047]

約数ペア:

[(1, 20187172047), (3, 6729057349), (7, 2883881721), (21, 961293907), (49, 411983103), (147, 137327701), (343, 58854729), (1029, 19618243)]