397760839

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{281}}^1\times {\mathrm{367}}^1$

素因数の和:703

約数の個数: 32

約数和(自身を含む): 498124800

約数和(自身を除く): 100363961

約数列:

[1, 7, 19, 29, 133, 203, 281, 367, 551, 1967, 2569, 3857, 5339, 6973, 8149, 10643, 37373, 48811, 57043, 74501, 103127, 154831, 202217, 721889, 1083817, 1415519, 1959413, 2990683, 13715891, 20934781, 56822977, 397760839]

約数ペア:

[(1, 397760839), (7, 56822977), (19, 20934781), (29, 13715891), (133, 2990683), (203, 1959413), (281, 1415519), (367, 1083817), (551, 721889), (1967, 202217), (2569, 154831), (3857, 103127), (5339, 74501), (6973, 57043), (8149, 48811), (10643, 37373)]