20085051

素因数分解:

$3^1\times 7^3\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:304

約数の個数: 32

約数和(自身を含む): 31680000

約数和(自身を除く): 11594949

約数列:

[1, 3, 7, 21, 49, 131, 147, 149, 343, 393, 447, 917, 1029, 1043, 2751, 3129, 6419, 7301, 19257, 19519, 21903, 44933, 51107, 58557, 134799, 136633, 153321, 409899, 956431, 2869293, 6695017, 20085051]

約数ペア:

[(1, 20085051), (3, 6695017), (7, 2869293), (21, 956431), (49, 409899), (131, 153321), (147, 136633), (149, 134799), (343, 58557), (393, 51107), (447, 44933), (917, 21903), (1029, 19519), (1043, 19257), (2751, 7301), (3129, 6419)]