291681

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{277}}^1$

素因数の和:302

約数の個数: 20

約数和(自身を含む): 470932

約数和(自身を除く): 179251

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 277, 351, 831, 1053, 2493, 3601, 7479, 10803, 22437, 32409, 97227, 291681]

約数ペア:

[(1, 291681), (3, 97227), (9, 32409), (13, 22437), (27, 10803), (39, 7479), (81, 3601), (117, 2493), (277, 1053), (351, 831)]