81904041

素因数分解:

$3^4\times {\mathrm{19}}^2\times {\mathrm{2801}}^1$

素因数の和:2851

約数の個数: 30

約数和(自身を含む): 129175002

約数和(自身を除く): 47270961

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 361, 513, 1083, 1539, 2801, 3249, 8403, 9747, 25209, 29241, 53219, 75627, 159657, 226881, 478971, 1011161, 1436913, 3033483, 4310739, 9100449, 27301347, 81904041]

約数ペア:

[(1, 81904041), (3, 27301347), (9, 9100449), (19, 4310739), (27, 3033483), (57, 1436913), (81, 1011161), (171, 478971), (361, 226881), (513, 159657), (1083, 75627), (1539, 53219), (2801, 29241), (3249, 25209), (8403, 9747)]