18108905

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1759}}^1$

素因数の和:1864

約数の個数: 16

約数和(自身を含む): 22809600

約数和(自身を除く): 4700695

約数列:

[1, 5, 29, 71, 145, 355, 1759, 2059, 8795, 10295, 51011, 124889, 255055, 624445, 3621781, 18108905]

約数ペア:

[(1, 18108905), (5, 3621781), (29, 624445), (71, 255055), (145, 124889), (355, 51011), (1759, 10295), (2059, 8795)]