19248020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{87491}}^1$

素因数の和:87511

約数の個数: 24

約数和(自身を含む): 44095968

約数和(自身を除く): 24847948

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 87491, 174982, 349964, 437455, 874910, 962401, 1749820, 1924802, 3849604, 4812005, 9624010, 19248020]

約数ペア:

[(1, 19248020), (2, 9624010), (4, 4812005), (5, 3849604), (10, 1924802), (11, 1749820), (20, 962401), (22, 874910), (44, 437455), (55, 349964), (110, 174982), (220, 87491)]