20574356

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{42509}}^1$

素因数の和:42535

約数の個数: 18

約数和(自身を含む): 39576810

約数和(自身を除く): 19002454

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 42509, 85018, 170036, 467599, 935198, 1870396, 5143589, 10287178, 20574356]

約数ペア:

[(1, 20574356), (2, 10287178), (4, 5143589), (11, 1870396), (22, 935198), (44, 467599), (121, 170036), (242, 85018), (484, 42509)]