31880457

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^3\times {\mathrm{103}}^1$

素因数の和:167

約数の個数: 48

約数和(自身を含む): 56459520

約数和(自身を除く): 24579063

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 103, 119, 153, 289, 309, 357, 721, 867, 927, 1071, 1751, 2023, 2163, 2601, 4913, 5253, 6069, 6489, 12257, 14739, 15759, 18207, 29767, 34391, 36771, 44217, 89301, 103173, 110313, 208369, 267903, 309519, 506039, 625107, 1518117, 1875321, 3542273, 4554351, 10626819, 31880457]

約数ペア:

[(1, 31880457), (3, 10626819), (7, 4554351), (9, 3542273), (17, 1875321), (21, 1518117), (51, 625107), (63, 506039), (103, 309519), (119, 267903), (153, 208369), (289, 110313), (309, 103173), (357, 89301), (721, 44217), (867, 36771), (927, 34391), (1071, 29767), (1751, 18207), (2023, 15759), (2163, 14739), (2601, 12257), (4913, 6489), (5253, 6069)]