18985510

素因数分解:

$2^1\times 5^1\times {\mathrm{811}}^1\times {\mathrm{2341}}^1$

素因数の和:3159

約数の個数: 16

約数和(自身を含む): 34230672

約数和(自身を除く): 15245162

約数列:

[1, 2, 5, 10, 811, 1622, 2341, 4055, 4682, 8110, 11705, 23410, 1898551, 3797102, 9492755, 18985510]

約数ペア:

[(1, 18985510), (2, 9492755), (5, 3797102), (10, 1898551), (811, 23410), (1622, 11705), (2341, 8110), (4055, 4682)]