981301581

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{823}}^1$

素因数の和:967

約数の個数: 64

約数和(自身を含む): 1624268800

約数和(自身を除く): 642967219

約数列:

[1, 3, 9, 13, 27, 39, 43, 79, 117, 129, 237, 351, 387, 559, 711, 823, 1027, 1161, 1677, 2133, 2469, 3081, 3397, 5031, 7407, 9243, 10191, 10699, 15093, 22221, 27729, 30573, 32097, 35389, 44161, 65017, 91719, 96291, 106167, 132483, 195051, 288873, 318501, 397449, 460057, 585153, 845221, 955503, 1192347, 1380171, 1755459, 2535663, 2795731, 4140513, 7606989, 8387193, 12421539, 22820967, 25161579, 36344503, 75484737, 109033509, 327100527, 981301581]

約数ペア:

[(1, 981301581), (3, 327100527), (9, 109033509), (13, 75484737), (27, 36344503), (39, 25161579), (43, 22820967), (79, 12421539), (117, 8387193), (129, 7606989), (237, 4140513), (351, 2795731), (387, 2535663), (559, 1755459), (711, 1380171), (823, 1192347), (1027, 955503), (1161, 845221), (1677, 585153), (2133, 460057), (2469, 397449), (3081, 318501), (3397, 288873), (5031, 195051), (7407, 132483), (9243, 106167), (10191, 96291), (10699, 91719), (15093, 65017), (22221, 44161), (27729, 35389), (30573, 32097)]