28132209

素因数分解:

$3^2\times 7^1\times {\mathrm{601}}^1\times {\mathrm{743}}^1$

素因数の和:1357

約数の個数: 24

約数和(自身を含む): 46580352

約数和(自身を除く): 18448143

約数列:

[1, 3, 7, 9, 21, 63, 601, 743, 1803, 2229, 4207, 5201, 5409, 6687, 12621, 15603, 37863, 46809, 446543, 1339629, 3125801, 4018887, 9377403, 28132209]

約数ペア:

[(1, 28132209), (3, 9377403), (7, 4018887), (9, 3125801), (21, 1339629), (63, 446543), (601, 46809), (743, 37863), (1803, 15603), (2229, 12621), (4207, 6687), (5201, 5409)]