20405577

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{7213}}^1$

素因数の和:7280

約数の個数: 16

約数和(自身を含む): 29086848

約数和(自身を除く): 8681271

約数列:

[1, 3, 23, 41, 69, 123, 943, 2829, 7213, 21639, 165899, 295733, 497697, 887199, 6801859, 20405577]

約数ペア:

[(1, 20405577), (3, 6801859), (23, 887199), (41, 497697), (69, 295733), (123, 165899), (943, 21639), (2829, 7213)]