78987069

素因数分解:

$3^4\times 7^3\times {\mathrm{2843}}^1$

素因数の和:2876

約数の個数: 40

約数和(自身を含む): 137649600

約数和(自身を除く): 58662531

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 343, 441, 567, 1029, 1323, 2843, 3087, 3969, 8529, 9261, 19901, 25587, 27783, 59703, 76761, 139307, 179109, 230283, 417921, 537327, 975149, 1253763, 1611981, 2925447, 3761289, 8776341, 11283867, 26329023, 78987069]

約数ペア:

[(1, 78987069), (3, 26329023), (7, 11283867), (9, 8776341), (21, 3761289), (27, 2925447), (49, 1611981), (63, 1253763), (81, 975149), (147, 537327), (189, 417921), (343, 230283), (441, 179109), (567, 139307), (1029, 76761), (1323, 59703), (2843, 27783), (3087, 25587), (3969, 19901), (8529, 9261)]