81379161

素因数分解:

$3^4\times {\mathrm{487}}^1\times {\mathrm{2063}}^1$

素因数の和:2562

約数の個数: 20

約数和(自身を含む): 121875072

約数和(自身を除く): 40495911

約数列:

[1, 3, 9, 27, 81, 487, 1461, 2063, 4383, 6189, 13149, 18567, 39447, 55701, 167103, 1004681, 3014043, 9042129, 27126387, 81379161]

約数ペア:

[(1, 81379161), (3, 27126387), (9, 9042129), (27, 3014043), (81, 1004681), (487, 167103), (1461, 55701), (2063, 39447), (4383, 18567), (6189, 13149)]