389680977

素因数分解:

$3^1\times 7^2\times {\mathrm{1237}}^1\times {\mathrm{2143}}^1$

素因数の和:3397

約数の個数: 24

約数和(自身を含む): 605174016

約数和(自身を除く): 215493039

約数列:

[1, 3, 7, 21, 49, 147, 1237, 2143, 3711, 6429, 8659, 15001, 25977, 45003, 60613, 105007, 181839, 315021, 2650891, 7952673, 18556237, 55668711, 129893659, 389680977]

約数ペア:

[(1, 389680977), (3, 129893659), (7, 55668711), (21, 18556237), (49, 7952673), (147, 2650891), (1237, 315021), (2143, 181839), (3711, 105007), (6429, 60613), (8659, 45003), (15001, 25977)]