25604019

素因数分解:

$3^4\times 7^2\times {\mathrm{6451}}^1$

素因数の和:6477

約数の個数: 30

約数和(自身を含む): 44499444

約数和(自身を除く): 18895425

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 6451, 19353, 45157, 58059, 135471, 174177, 316099, 406413, 522531, 948297, 1219239, 2844891, 3657717, 8534673, 25604019]

約数ペア:

[(1, 25604019), (3, 8534673), (7, 3657717), (9, 2844891), (21, 1219239), (27, 948297), (49, 522531), (63, 406413), (81, 316099), (147, 174177), (189, 135471), (441, 58059), (567, 45157), (1323, 19353), (3969, 6451)]