21585421

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{557}}^1$

素因数の和:852

約数の個数: 16

約数和(自身を含む): 25498368

約数和(自身を除く): 3912947

約数列:

[1, 11, 13, 143, 271, 557, 2981, 3523, 6127, 7241, 38753, 79651, 150947, 1660417, 1962311, 21585421]

約数ペア:

[(1, 21585421), (11, 1962311), (13, 1660417), (143, 150947), (271, 79651), (557, 38753), (2981, 7241), (3523, 6127)]