639274383

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{25933}}^1$

素因数の和:26036

約数の個数: 32

約数和(自身を含む): 1045658880

約数和(自身を除く): 406384497

約数列:

[1, 3, 9, 11, 27, 33, 83, 99, 249, 297, 747, 913, 2241, 2739, 8217, 24651, 25933, 77799, 233397, 285263, 700191, 855789, 2152439, 2567367, 6457317, 7702101, 19371951, 23676829, 58115853, 71030487, 213091461, 639274383]

約数ペア:

[(1, 639274383), (3, 213091461), (9, 71030487), (11, 58115853), (27, 23676829), (33, 19371951), (83, 7702101), (99, 6457317), (249, 2567367), (297, 2152439), (747, 855789), (913, 700191), (2241, 285263), (2739, 233397), (8217, 77799), (24651, 25933)]