20821578

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{150881}}^1$

素因数の和:150909

約数の個数: 16

約数和(自身を含む): 43454016

約数和(自身を除く): 22632438

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 150881, 301762, 452643, 905286, 3470263, 6940526, 10410789, 20821578]

約数ペア:

[(1, 20821578), (2, 10410789), (3, 6940526), (6, 3470263), (23, 905286), (46, 452643), (69, 301762), (138, 150881)]