21319227

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{25471}}^1$

素因数の和:25511

約数の個数: 16

約数和(自身を含む): 32604160

約数和(自身を除く): 11284933

約数列:

[1, 3, 9, 27, 31, 93, 279, 837, 25471, 76413, 229239, 687717, 789601, 2368803, 7106409, 21319227]

約数ペア:

[(1, 21319227), (3, 7106409), (9, 2368803), (27, 789601), (31, 687717), (93, 229239), (279, 76413), (837, 25471)]