20904093

素因数分解:

$3^2\times 7^1\times {\mathrm{449}}^1\times {\mathrm{739}}^1$

素因数の和:1201

約数の個数: 24

約数和(自身を含む): 34632000

約数和(自身を除く): 13727907

約数列:

[1, 3, 7, 9, 21, 63, 449, 739, 1347, 2217, 3143, 4041, 5173, 6651, 9429, 15519, 28287, 46557, 331811, 995433, 2322677, 2986299, 6968031, 20904093]

約数ペア:

[(1, 20904093), (3, 6968031), (7, 2986299), (9, 2322677), (21, 995433), (63, 331811), (449, 46557), (739, 28287), (1347, 15519), (2217, 9429), (3143, 6651), (4041, 5173)]