25956819

素因数分解:

$3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{829}}^1$

素因数の和:920

約数の個数: 36

約数和(自身を含む): 44282160

約数和(自身を除く): 18325341

約数列:

[1, 3, 7, 9, 21, 49, 63, 71, 147, 213, 441, 497, 639, 829, 1491, 2487, 3479, 4473, 5803, 7461, 10437, 17409, 31311, 40621, 52227, 58859, 121863, 176577, 365589, 412013, 529731, 1236039, 2884091, 3708117, 8652273, 25956819]

約数ペア:

[(1, 25956819), (3, 8652273), (7, 3708117), (9, 2884091), (21, 1236039), (49, 529731), (63, 412013), (71, 365589), (147, 176577), (213, 121863), (441, 58859), (497, 52227), (639, 40621), (829, 31311), (1491, 17409), (2487, 10437), (3479, 7461), (4473, 5803)]