77917281

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{313}}^1\times {\mathrm{491}}^1$

素因数の和:833

約数の個数: 24

約数和(自身を含む): 113085216

約数和(自身を除く): 35167935

約数列:

[1, 3, 13, 39, 169, 313, 491, 507, 939, 1473, 4069, 6383, 12207, 19149, 52897, 82979, 153683, 158691, 248937, 461049, 1997879, 5993637, 25972427, 77917281]

約数ペア:

[(1, 77917281), (3, 25972427), (13, 5993637), (39, 1997879), (169, 461049), (313, 248937), (491, 158691), (507, 153683), (939, 82979), (1473, 52897), (4069, 19149), (6383, 12207)]