251481489

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{317}}^1\times {\mathrm{1021}}^1$

素因数の和:1385

約数の個数: 32

約数和(自身を含む): 395195136

約数和(自身を除く): 143713647

約数列:

[1, 3, 7, 21, 37, 111, 259, 317, 777, 951, 1021, 2219, 3063, 6657, 7147, 11729, 21441, 35187, 37777, 82103, 113331, 246309, 264439, 323657, 793317, 970971, 2265599, 6796797, 11975309, 35925927, 83827163, 251481489]

約数ペア:

[(1, 251481489), (3, 83827163), (7, 35925927), (21, 11975309), (37, 6796797), (111, 2265599), (259, 970971), (317, 793317), (777, 323657), (951, 264439), (1021, 246309), (2219, 113331), (3063, 82103), (6657, 37777), (7147, 35187), (11729, 21441)]