20868765

素因数分解:

$3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{10009}}^1$

素因数の和:10156

約数の個数: 16

約数和(自身を含む): 33633600

約数和(自身を除く): 12764835

約数列:

[1, 3, 5, 15, 139, 417, 695, 2085, 10009, 30027, 50045, 150135, 1391251, 4173753, 6956255, 20868765]

約数ペア:

[(1, 20868765), (3, 6956255), (5, 4173753), (15, 1391251), (139, 150135), (417, 50045), (695, 30027), (2085, 10009)]