388628721

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{195389}}^1$

素因数の和:195425

約数の個数: 24

約数和(自身を含む): 640097640

約数和(自身を除く): 251468919

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989, 195389, 586167, 1758501, 2540057, 3321613, 7620171, 9964839, 22860513, 29894517, 43180969, 129542907, 388628721]

約数ペア:

[(1, 388628721), (3, 129542907), (9, 43180969), (13, 29894517), (17, 22860513), (39, 9964839), (51, 7620171), (117, 3321613), (153, 2540057), (221, 1758501), (663, 586167), (1989, 195389)]