19229540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{87407}}^1$

素因数の和:87427

約数の個数: 24

約数和(自身を含む): 44053632

約数和(自身を除く): 24824092

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 87407, 174814, 349628, 437035, 874070, 961477, 1748140, 1922954, 3845908, 4807385, 9614770, 19229540]

約数ペア:

[(1, 19229540), (2, 9614770), (4, 4807385), (5, 3845908), (10, 1922954), (11, 1748140), (20, 961477), (22, 874070), (44, 437035), (55, 349628), (110, 174814), (220, 87407)]