20218541

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{4051}}^1$

素因数の和:4112

約数の個数: 16

約数和(自身を含む): 24895488

約数和(自身を除く): 4676947

約数列:

[1, 7, 23, 31, 161, 217, 713, 4051, 4991, 28357, 93173, 125581, 652211, 879067, 2888363, 20218541]

約数ペア:

[(1, 20218541), (7, 2888363), (23, 879067), (31, 652211), (161, 125581), (217, 93173), (713, 28357), (4051, 4991)]