21873969

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{20773}}^1$

素因数の和:20798

約数の個数: 20

約数和(自身を含む): 35191156

約数和(自身を除く): 13317187

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 20773, 62319, 186957, 270049, 560871, 810147, 1682613, 2430441, 7291323, 21873969]

約数ペア:

[(1, 21873969), (3, 7291323), (9, 2430441), (13, 1682613), (27, 810147), (39, 560871), (81, 270049), (117, 186957), (351, 62319), (1053, 20773)]