81289737

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{23339}}^1$

素因数の和:23394

約数の個数: 20

約数和(自身を含む): 124262160

約数和(自身を除く): 42972423

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 23339, 70017, 210051, 630153, 1003577, 1890459, 3010731, 9032193, 27096579, 81289737]

約数ペア:

[(1, 81289737), (3, 27096579), (9, 9032193), (27, 3010731), (43, 1890459), (81, 1003577), (129, 630153), (387, 210051), (1161, 70017), (3483, 23339)]