81319851

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{7109}}^1$

素因数の和:7187

約数の個数: 24

約数和(自身を含む): 124225920

約数和(自身を除く): 42906069

約数列:

[1, 3, 9, 31, 41, 93, 123, 279, 369, 1271, 3813, 7109, 11439, 21327, 63981, 220379, 291469, 661137, 874407, 1983411, 2623221, 9035539, 27106617, 81319851]

約数ペア:

[(1, 81319851), (3, 27106617), (9, 9035539), (31, 2623221), (41, 1983411), (93, 874407), (123, 661137), (279, 291469), (369, 220379), (1271, 63981), (3813, 21327), (7109, 11439)]