20423767

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{2179}}^1$

素因数の和:2302

約数の個数: 16

約数和(自身を含む): 25392640

約数和(自身を除く): 4968873

約数列:

[1, 7, 13, 91, 103, 721, 1339, 2179, 9373, 15253, 28327, 198289, 224437, 1571059, 2917681, 20423767]

約数ペア:

[(1, 20423767), (7, 2917681), (13, 1571059), (91, 224437), (103, 198289), (721, 28327), (1339, 15253), (2179, 9373)]