81289413

素因数分解:

$3^4\times {\mathrm{173}}^1\times {\mathrm{5801}}^1$

素因数の和:5986

約数の個数: 20

約数和(自身を含む): 122155308

約数和(自身を除く): 40865895

約数列:

[1, 3, 9, 27, 81, 173, 519, 1557, 4671, 5801, 14013, 17403, 52209, 156627, 469881, 1003573, 3010719, 9032157, 27096471, 81289413]

約数ペア:

[(1, 81289413), (3, 27096471), (9, 9032157), (27, 3010719), (81, 1003573), (173, 469881), (519, 156627), (1557, 52209), (4671, 17403), (5801, 14013)]