21585207

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{467}}^1$

素因数の和:579

約数の個数: 32

約数和(自身を含む): 34504704

約数和(自身を除く): 12919497

約数列:

[1, 3, 7, 21, 31, 71, 93, 213, 217, 467, 497, 651, 1401, 1491, 2201, 3269, 6603, 9807, 14477, 15407, 33157, 43431, 46221, 99471, 101339, 232099, 304017, 696297, 1027867, 3083601, 7195069, 21585207]

約数ペア:

[(1, 21585207), (3, 7195069), (7, 3083601), (21, 1027867), (31, 696297), (71, 304017), (93, 232099), (213, 101339), (217, 99471), (467, 46221), (497, 43431), (651, 33157), (1401, 15407), (1491, 14477), (2201, 9807), (3269, 6603)]