128801259

素因数分解:

$3^4\times {\mathrm{643}}^1\times {\mathrm{2473}}^1$

素因数の和:3128

約数の個数: 20

約数和(自身を含む): 192783976

約数和(自身を除く): 63982717

約数列:

[1, 3, 9, 27, 81, 643, 1929, 2473, 5787, 7419, 17361, 22257, 52083, 66771, 200313, 1590139, 4770417, 14311251, 42933753, 128801259]

約数ペア:

[(1, 128801259), (3, 42933753), (9, 14311251), (27, 4770417), (81, 1590139), (643, 200313), (1929, 66771), (2473, 52083), (5787, 22257), (7419, 17361)]