18929391

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{449}}^1$

素因数の和:535

約数の個数: 32

約数和(自身を含む): 29030400

約数和(自身を除く): 10101009

約数列:

[1, 3, 13, 23, 39, 47, 69, 141, 299, 449, 611, 897, 1081, 1347, 1833, 3243, 5837, 10327, 14053, 17511, 21103, 30981, 42159, 63309, 134251, 274339, 402753, 485369, 823017, 1456107, 6309797, 18929391]

約数ペア:

[(1, 18929391), (3, 6309797), (13, 1456107), (23, 823017), (39, 485369), (47, 402753), (69, 274339), (141, 134251), (299, 63309), (449, 42159), (611, 30981), (897, 21103), (1081, 17511), (1347, 14053), (1833, 10327), (3243, 5837)]