128664567

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{271}}^1\times {\mathrm{743}}^1$

素因数の和:1091

約数の個数: 24

約数和(自身を含む): 189416448

約数和(自身を除く): 60751881

約数列:

[1, 3, 9, 71, 213, 271, 639, 743, 813, 2229, 2439, 6687, 19241, 52753, 57723, 158259, 173169, 201353, 474777, 604059, 1812177, 14296063, 42888189, 128664567]

約数ペア:

[(1, 128664567), (3, 42888189), (9, 14296063), (71, 1812177), (213, 604059), (271, 474777), (639, 201353), (743, 173169), (813, 158259), (2229, 57723), (2439, 52753), (6687, 19241)]