81182269

素因数分解:

$7^3\times {\mathrm{19}}^1\times {\mathrm{12457}}^1$

素因数の和:12497

約数の個数: 16

約数和(自身を含む): 99664000

約数和(自身を除く): 18481731

約数列:

[1, 7, 19, 49, 133, 343, 931, 6517, 12457, 87199, 236683, 610393, 1656781, 4272751, 11597467, 81182269]

約数ペア:

[(1, 81182269), (7, 11597467), (19, 4272751), (49, 1656781), (133, 610393), (343, 236683), (931, 87199), (6517, 12457)]