20786121

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{1319}}^1$

素因数の和:1445

約数の個数: 24

約数和(自身を含む): 32123520

約数和(自身を除く): 11337399

約数列:

[1, 3, 9, 17, 51, 103, 153, 309, 927, 1319, 1751, 3957, 5253, 11871, 15759, 22423, 67269, 135857, 201807, 407571, 1222713, 2309569, 6928707, 20786121]

約数ペア:

[(1, 20786121), (3, 6928707), (9, 2309569), (17, 1222713), (51, 407571), (103, 201807), (153, 135857), (309, 67269), (927, 22423), (1319, 15759), (1751, 11871), (3957, 5253)]