39959983

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{2917}}^1$

素因数の和:3046

約数の個数: 16

約数和(自身を含む): 48555520

約数和(自身を除く): 8595537

約数列:

[1, 7, 19, 103, 133, 721, 1957, 2917, 13699, 20419, 55423, 300451, 387961, 2103157, 5708569, 39959983]

約数ペア:

[(1, 39959983), (7, 5708569), (19, 2103157), (103, 387961), (133, 300451), (721, 55423), (1957, 20419), (2917, 13699)]