20239999731

素因数分解:

$3^2\times 7^2\times {\mathrm{883}}^1\times {\mathrm{51977}}^1$

素因数の和:52880

約数の個数: 36

約数和(自身を含む): 34047877032

約数和(自身を除く): 13807877301

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 883, 2649, 6181, 7947, 18543, 43267, 51977, 55629, 129801, 155931, 363839, 389403, 467793, 1091517, 2546873, 3274551, 7640619, 22921857, 45895691, 137687073, 321269837, 413061219, 963809511, 2248888859, 2891428533, 6746666577, 20239999731]

約数ペア:

[(1, 20239999731), (3, 6746666577), (7, 2891428533), (9, 2248888859), (21, 963809511), (49, 413061219), (63, 321269837), (147, 137687073), (441, 45895691), (883, 22921857), (2649, 7640619), (6181, 3274551), (7947, 2546873), (18543, 1091517), (43267, 467793), (51977, 389403), (55629, 363839), (129801, 155931)]