20875518

素因数分解:

$2^1\times 3^2\times {\mathrm{73}}^1\times {\mathrm{15887}}^1$

素因数の和:15968

約数の個数: 24

約数和(自身を含む): 45852768

約数和(自身を除く): 24977250

約数列:

[1, 2, 3, 6, 9, 18, 73, 146, 219, 438, 657, 1314, 15887, 31774, 47661, 95322, 142983, 285966, 1159751, 2319502, 3479253, 6958506, 10437759, 20875518]

約数ペア:

[(1, 20875518), (2, 10437759), (3, 6958506), (6, 3479253), (9, 2319502), (18, 1159751), (73, 285966), (146, 142983), (219, 95322), (438, 47661), (657, 31774), (1314, 15887)]