21311331

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{6337}}^1$

素因数の和:6418

約数の個数: 16

約数和(自身を含む): 30422400

約数和(自身を除く): 9111069

約数列:

[1, 3, 19, 57, 59, 177, 1121, 3363, 6337, 19011, 120403, 361209, 373883, 1121649, 7103777, 21311331]

約数ペア:

[(1, 21311331), (3, 7103777), (19, 1121649), (57, 373883), (59, 361209), (177, 120403), (1121, 19011), (3363, 6337)]