18640485

素因数分解:

$3^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1033}}^1$

素因数の和:1445

約数の個数: 24

約数和(自身を含む): 32422104

約数和(自身を除く): 13781619

約数列:

[1, 3, 5, 9, 15, 45, 401, 1033, 1203, 2005, 3099, 3609, 5165, 6015, 9297, 15495, 18045, 46485, 414233, 1242699, 2071165, 3728097, 6213495, 18640485]

約数ペア:

[(1, 18640485), (3, 6213495), (5, 3728097), (9, 2071165), (15, 1242699), (45, 414233), (401, 46485), (1033, 18045), (1203, 15495), (2005, 9297), (3099, 6015), (3609, 5165)]