668045313

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{634421}}^1$

素因数の和:634446

約数の個数: 20

約数和(自身を含む): 1074710868

約数和(自身を除く): 406665555

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 634421, 1903263, 5709789, 8247473, 17129367, 24742419, 51388101, 74227257, 222681771, 668045313]

約数ペア:

[(1, 668045313), (3, 222681771), (9, 74227257), (13, 51388101), (27, 24742419), (39, 17129367), (81, 8247473), (117, 5709789), (351, 1903263), (1053, 634421)]