207998721

素因数分解:

$3^2\times 7^1\times {\mathrm{617}}^1\times {\mathrm{5351}}^1$

素因数の和:5981

約数の個数: 24

約数和(自身を含む): 343983744

約数和(自身を除く): 135985023

約数列:

[1, 3, 7, 9, 21, 63, 617, 1851, 4319, 5351, 5553, 12957, 16053, 37457, 38871, 48159, 112371, 337113, 3301567, 9904701, 23110969, 29714103, 69332907, 207998721]

約数ペア:

[(1, 207998721), (3, 69332907), (7, 29714103), (9, 23110969), (21, 9904701), (63, 3301567), (617, 337113), (1851, 112371), (4319, 48159), (5351, 38871), (5553, 37457), (12957, 16053)]