18891366

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{242197}}^1$

素因数の和:242215

約数の個数: 16

約数和(自身を含む): 40689264

約数和(自身を除く): 21797898

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 242197, 484394, 726591, 1453182, 3148561, 6297122, 9445683, 18891366]

約数ペア:

[(1, 18891366), (2, 9445683), (3, 6297122), (6, 3148561), (13, 1453182), (26, 726591), (39, 484394), (78, 242197)]