18998485

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{1549}}^1$

素因数の和:1788

約数の個数: 16

約数和(自身を含む): 24998400

約数和(自身を除く): 5999915

約数列:

[1, 5, 11, 55, 223, 1115, 1549, 2453, 7745, 12265, 17039, 85195, 345427, 1727135, 3799697, 18998485]

約数ペア:

[(1, 18998485), (5, 3799697), (11, 1727135), (55, 345427), (223, 85195), (1115, 17039), (1549, 12265), (2453, 7745)]