28626777

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{8219}}^1$

素因数の和:8274

約数の個数: 20

約数和(自身を含む): 43763280

約数和(自身を除く): 15136503

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 8219, 24657, 73971, 221913, 353417, 665739, 1060251, 3180753, 9542259, 28626777]

約数ペア:

[(1, 28626777), (3, 9542259), (9, 3180753), (27, 1060251), (43, 665739), (81, 353417), (129, 221913), (387, 73971), (1161, 24657), (3483, 8219)]