21777598241

素因数分解:

$7^1\times {\mathrm{1019}}^1\times {\mathrm{1109}}^1\times {\mathrm{2753}}^1$

素因数の和:4888

約数の個数: 16

約数和(自身を含む): 24944630400

約数和(自身を除く): 3167032159

約数列:

[1, 7, 1019, 1109, 2753, 7133, 7763, 19271, 1130071, 2805307, 3053077, 7910497, 19637149, 21371539, 3111085463, 21777598241]

約数ペア:

[(1, 21777598241), (7, 3111085463), (1019, 21371539), (1109, 19637149), (2753, 7910497), (7133, 3053077), (7763, 2805307), (19271, 1130071)]