20651031

素因数分解:

$3^4\times {\mathrm{109}}^1\times {\mathrm{2339}}^1$

素因数の和:2460

約数の個数: 20

約数和(自身を含む): 31145400

約数和(自身を除く): 10494369

約数列:

[1, 3, 9, 27, 81, 109, 327, 981, 2339, 2943, 7017, 8829, 21051, 63153, 189459, 254951, 764853, 2294559, 6883677, 20651031]

約数ペア:

[(1, 20651031), (3, 6883677), (9, 2294559), (27, 764853), (81, 254951), (109, 189459), (327, 63153), (981, 21051), (2339, 8829), (2943, 7017)]