128584017

素因数分解:

$3^4\times {\mathrm{163}}^1\times {\mathrm{9739}}^1$

素因数の和:9914

約数の個数: 20

約数和(自身を含む): 193280560

約数和(自身を除く): 64696543

約数列:

[1, 3, 9, 27, 81, 163, 489, 1467, 4401, 9739, 13203, 29217, 87651, 262953, 788859, 1587457, 4762371, 14287113, 42861339, 128584017]

約数ペア:

[(1, 128584017), (3, 42861339), (9, 14287113), (27, 4762371), (81, 1587457), (163, 788859), (489, 262953), (1467, 87651), (4401, 29217), (9739, 13203)]