18988475

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2381}}^1$

素因数の和:2431

約数の個数: 24

約数和(自身を含む): 26583120

約数和(自身を除く): 7594645

約数列:

[1, 5, 11, 25, 29, 55, 145, 275, 319, 725, 1595, 2381, 7975, 11905, 26191, 59525, 69049, 130955, 345245, 654775, 759539, 1726225, 3797695, 18988475]

約数ペア:

[(1, 18988475), (5, 3797695), (11, 1726225), (25, 759539), (29, 654775), (55, 345245), (145, 130955), (275, 69049), (319, 59525), (725, 26191), (1595, 11905), (2381, 7975)]