128742777

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{29989}}^1$

素因数の和:30054

約数の個数: 20

約数和(自身を含む): 195954660

約数和(自身を除く): 67211883

約数列:

[1, 3, 9, 27, 53, 81, 159, 477, 1431, 4293, 29989, 89967, 269901, 809703, 1589417, 2429109, 4768251, 14304753, 42914259, 128742777]

約数ペア:

[(1, 128742777), (3, 42914259), (9, 14304753), (27, 4768251), (53, 2429109), (81, 1589417), (159, 809703), (477, 269901), (1431, 89967), (4293, 29989)]