1989567

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:199

約数の個数: 24

約数和(自身を含む): 3027024

約数和(自身を除く): 1037457

約数列:

[1, 3, 9, 43, 53, 97, 129, 159, 291, 387, 477, 873, 2279, 4171, 5141, 6837, 12513, 15423, 20511, 37539, 46269, 221063, 663189, 1989567]

約数ペア:

[(1, 1989567), (3, 663189), (9, 221063), (43, 46269), (53, 37539), (97, 20511), (129, 15423), (159, 12513), (291, 6837), (387, 5141), (477, 4171), (873, 2279)]