21244059

素因数分解:

$3^3\times {\mathrm{103}}^1\times {\mathrm{7639}}^1$

素因数の和:7751

約数の個数: 16

約数和(自身を含む): 31782400

約数和(自身を除く): 10538341

約数列:

[1, 3, 9, 27, 103, 309, 927, 2781, 7639, 22917, 68751, 206253, 786817, 2360451, 7081353, 21244059]

約数ペア:

[(1, 21244059), (3, 7081353), (9, 2360451), (27, 786817), (103, 206253), (309, 68751), (927, 22917), (2781, 7639)]