15581781

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{13421}}^1$

素因数の和:13473

約数の個数: 16

約数和(自身を含む): 23622720

約数和(自身を除く): 8040939

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 13421, 40263, 120789, 362367, 577103, 1731309, 5193927, 15581781]

約数ペア:

[(1, 15581781), (3, 5193927), (9, 1731309), (27, 577103), (43, 362367), (129, 120789), (387, 40263), (1161, 13421)]