17881721

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{9619}}^1$

素因数の和:9656

約数の個数: 12

約数和(自身を含む): 21125520

約数和(自身を除く): 3243799

約数列:

[1, 11, 13, 143, 169, 1859, 9619, 105809, 125047, 1375517, 1625611, 17881721]

約数ペア:

[(1, 17881721), (11, 1625611), (13, 1375517), (143, 125047), (169, 105809), (1859, 9619)]