20505906

素因数分解:

$2^1\times 3^3\times {\mathrm{499}}^1\times {\mathrm{761}}^1$

素因数の和:1271

約数の個数: 32

約数和(自身を含む): 45720000

約数和(自身を除く): 25214094

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 499, 761, 998, 1497, 1522, 2283, 2994, 4491, 4566, 6849, 8982, 13473, 13698, 20547, 26946, 41094, 379739, 759478, 1139217, 2278434, 3417651, 6835302, 10252953, 20505906]

約数ペア:

[(1, 20505906), (2, 10252953), (3, 6835302), (6, 3417651), (9, 2278434), (18, 1139217), (27, 759478), (54, 379739), (499, 41094), (761, 26946), (998, 20547), (1497, 13698), (1522, 13473), (2283, 8982), (2994, 6849), (4491, 4566)]