31273857

素因数分解:

$3^5\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:172

約数の個数: 48

約数和(自身を含む): 49777728

約数和(自身を除く): 18503871

約数列:

[1, 3, 9, 27, 41, 43, 73, 81, 123, 129, 219, 243, 369, 387, 657, 1107, 1161, 1763, 1971, 2993, 3139, 3321, 3483, 5289, 5913, 8979, 9417, 9963, 10449, 15867, 17739, 26937, 28251, 47601, 80811, 84753, 128699, 142803, 242433, 254259, 386097, 428409, 727299, 762777, 1158291, 3474873, 10424619, 31273857]

約数ペア:

[(1, 31273857), (3, 10424619), (9, 3474873), (27, 1158291), (41, 762777), (43, 727299), (73, 428409), (81, 386097), (123, 254259), (129, 242433), (219, 142803), (243, 128699), (369, 84753), (387, 80811), (657, 47601), (1107, 28251), (1161, 26937), (1763, 17739), (1971, 15867), (2993, 10449), (3139, 9963), (3321, 9417), (3483, 8979), (5289, 5913)]