20217202971

素因数分解:

$3^1\times 7^2\times {\mathrm{193}}^1\times {\mathrm{712601}}^1$

素因数の和:712811

約数の個数: 24

約数和(自身を含む): 31519811664

約数和(自身を除く): 11302608693

約数列:

[1, 3, 7, 21, 49, 147, 193, 579, 1351, 4053, 9457, 28371, 712601, 2137803, 4988207, 14964621, 34917449, 104752347, 137531993, 412595979, 962723951, 2888171853, 6739067657, 20217202971]

約数ペア:

[(1, 20217202971), (3, 6739067657), (7, 2888171853), (21, 962723951), (49, 412595979), (147, 137531993), (193, 104752347), (579, 34917449), (1351, 14964621), (4053, 4988207), (9457, 2137803), (28371, 712601)]