28057347

素因数分解:

$3^4\times {\mathrm{97}}^1\times {\mathrm{3571}}^1$

素因数の和:3680

約数の個数: 20

約数和(自身を含む): 42356776

約数和(自身を除く): 14299429

約数列:

[1, 3, 9, 27, 81, 97, 291, 873, 2619, 3571, 7857, 10713, 32139, 96417, 289251, 346387, 1039161, 3117483, 9352449, 28057347]

約数ペア:

[(1, 28057347), (3, 9352449), (9, 3117483), (27, 1039161), (81, 346387), (97, 289251), (291, 96417), (873, 32139), (2619, 10713), (3571, 7857)]