18866309

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2753}}^1$

素因数の和:2860

約数の個数: 16

約数和(自身を含む): 23794560

約数和(自身を除く): 4928251

約数列:

[1, 7, 11, 77, 89, 623, 979, 2753, 6853, 19271, 30283, 211981, 245017, 1715119, 2695187, 18866309]

約数ペア:

[(1, 18866309), (7, 2695187), (11, 1715119), (77, 245017), (89, 211981), (623, 30283), (979, 19271), (2753, 6853)]