21788965

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{8429}}^1$

素因数の和:8492

約数の個数: 16

約数和(自身を含む): 29134080

約数和(自身を除く): 7345115

約数列:

[1, 5, 11, 47, 55, 235, 517, 2585, 8429, 42145, 92719, 396163, 463595, 1980815, 4357793, 21788965]

約数ペア:

[(1, 21788965), (5, 4357793), (11, 1980815), (47, 463595), (55, 396163), (235, 92719), (517, 42145), (2585, 8429)]