12906747

素因数分解:

$3^2\times 7^3\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:177

約数の個数: 48

約数和(自身を含む): 22526400

約数和(自身を除く): 9619653

約数列:

[1, 3, 7, 9, 21, 37, 49, 63, 111, 113, 147, 259, 333, 339, 343, 441, 777, 791, 1017, 1029, 1813, 2331, 2373, 3087, 4181, 5439, 5537, 7119, 12543, 12691, 16317, 16611, 29267, 37629, 38073, 38759, 49833, 87801, 114219, 116277, 204869, 263403, 348831, 614607, 1434083, 1843821, 4302249, 12906747]

約数ペア:

[(1, 12906747), (3, 4302249), (7, 1843821), (9, 1434083), (21, 614607), (37, 348831), (49, 263403), (63, 204869), (111, 116277), (113, 114219), (147, 87801), (259, 49833), (333, 38759), (339, 38073), (343, 37629), (441, 29267), (777, 16611), (791, 16317), (1017, 12691), (1029, 12543), (1813, 7119), (2331, 5537), (2373, 5439), (3087, 4181)]