12639285

素因数分解:

$3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1789}}^1$

素因数の和:1957

約数の個数: 24

約数和(自身を含む): 22059960

約数和(自身を除く): 9420675

約数列:

[1, 3, 5, 9, 15, 45, 157, 471, 785, 1413, 1789, 2355, 5367, 7065, 8945, 16101, 26835, 80505, 280873, 842619, 1404365, 2527857, 4213095, 12639285]

約数ペア:

[(1, 12639285), (3, 4213095), (5, 2527857), (9, 1404365), (15, 842619), (45, 280873), (157, 80505), (471, 26835), (785, 16101), (1413, 8945), (1789, 7065), (2355, 5367)]