647703459

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{615103}}^1$

素因数の和:615128

約数の個数: 20

約数和(自身を含む): 1041986176

約数和(自身を除く): 394282717

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 615103, 1845309, 5535927, 7996339, 16607781, 23989017, 49823343, 71967051, 215901153, 647703459]

約数ペア:

[(1, 647703459), (3, 215901153), (9, 71967051), (13, 49823343), (27, 23989017), (39, 16607781), (81, 7996339), (117, 5535927), (351, 1845309), (1053, 615103)]