638632953

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{327001}}^1$

素因数の和:327045

約数の個数: 24

約数和(自身を含む): 1088262656

約数和(自身を除く): 449629703

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 327001, 981003, 2289007, 2943009, 6867021, 10137031, 20601063, 30411093, 70959217, 91233279, 212877651, 638632953]

約数ペア:

[(1, 638632953), (3, 212877651), (7, 91233279), (9, 70959217), (21, 30411093), (31, 20601063), (63, 10137031), (93, 6867021), (217, 2943009), (279, 2289007), (651, 981003), (1953, 327001)]