28716009

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{11491}}^1$

素因数の和:11525

約数の個数: 24

約数和(自身を含む): 47163168

約数和(自身を除く): 18447159

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 11491, 34473, 80437, 195347, 241311, 563059, 586041, 1367429, 1689177, 4102287, 9572003, 28716009]

約数ペア:

[(1, 28716009), (3, 9572003), (7, 4102287), (17, 1689177), (21, 1367429), (49, 586041), (51, 563059), (119, 241311), (147, 195347), (357, 80437), (833, 34473), (2499, 11491)]