21491313077

素因数分解:

${\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{1742021}}^1$

素因数の和:1742120

約数の個数: 12

約数和(自身を含む): 23590461924

約数和(自身を除く): 2099148847

約数列:

[1, 13, 73, 169, 949, 12337, 1742021, 22646273, 127167533, 294401549, 1653177929, 21491313077]

約数ペア:

[(1, 21491313077), (13, 1653177929), (73, 294401549), (169, 127167533), (949, 22646273), (12337, 1742021)]