68978231

素因数分解:

$7^2\times {\mathrm{17}}^2\times {\mathrm{4871}}^1$

素因数の和:4919

約数の個数: 18

約数和(自身を含む): 85255128

約数和(自身を除く): 16276897

約数列:

[1, 7, 17, 49, 119, 289, 833, 2023, 4871, 14161, 34097, 82807, 238679, 579649, 1407719, 4057543, 9854033, 68978231]

約数ペア:

[(1, 68978231), (7, 9854033), (17, 4057543), (49, 1407719), (119, 579649), (289, 238679), (833, 82807), (2023, 34097), (4871, 14161)]