21356121

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{7549}}^1$

素因数の和:7616

約数の個数: 16

約数和(自身を含む): 30441600

約数和(自身を除く): 9085479

約数列:

[1, 3, 23, 41, 69, 123, 943, 2829, 7549, 22647, 173627, 309509, 520881, 928527, 7118707, 21356121]

約数ペア:

[(1, 21356121), (3, 7118707), (23, 928527), (41, 520881), (69, 309509), (123, 173627), (943, 22647), (2829, 7549)]