397865811

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{613}}^1\times {\mathrm{997}}^1$

素因数の和:1651

約数の個数: 32

約数和(自身を含む): 627478528

約数和(自身を除く): 229612717

約数列:

[1, 3, 7, 21, 31, 93, 217, 613, 651, 997, 1839, 2991, 4291, 6979, 12873, 19003, 20937, 30907, 57009, 92721, 133021, 216349, 399063, 611161, 649047, 1833483, 4278127, 12834381, 18945991, 56837973, 132621937, 397865811]

約数ペア:

[(1, 397865811), (3, 132621937), (7, 56837973), (21, 18945991), (31, 12834381), (93, 4278127), (217, 1833483), (613, 649047), (651, 611161), (997, 399063), (1839, 216349), (2991, 133021), (4291, 92721), (6979, 57009), (12873, 30907), (19003, 20937)]