28737121

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1\times {\mathrm{239}}^1$

素因数の和:528

約数の個数: 16

約数和(自身を含む): 33523200

約数和(自身を除く): 4786079

約数列:

[1, 7, 89, 193, 239, 623, 1351, 1673, 17177, 21271, 46127, 120239, 148897, 322889, 4105303, 28737121]

約数ペア:

[(1, 28737121), (7, 4105303), (89, 322889), (193, 148897), (239, 120239), (623, 46127), (1351, 21271), (1673, 17177)]