278906859

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{3169}}^1$

素因数の和:3320

約数の個数: 48

約数和(自身を含む): 506388480

約数和(自身を除く): 227481621

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 127, 231, 381, 693, 889, 1143, 1397, 2667, 3169, 4191, 8001, 9507, 9779, 12573, 22183, 28521, 29337, 34859, 66549, 88011, 104577, 199647, 244013, 313731, 402463, 732039, 1207389, 2196117, 2817241, 3622167, 4427093, 8451723, 13281279, 25355169, 30989651, 39843837, 92968953, 278906859]

約数ペア:

[(1, 278906859), (3, 92968953), (7, 39843837), (9, 30989651), (11, 25355169), (21, 13281279), (33, 8451723), (63, 4427093), (77, 3622167), (99, 2817241), (127, 2196117), (231, 1207389), (381, 732039), (693, 402463), (889, 313731), (1143, 244013), (1397, 199647), (2667, 104577), (3169, 88011), (4191, 66549), (8001, 34859), (9507, 29337), (9779, 28521), (12573, 22183)]