8720379

素因数分解:

$3^4\times {\mathrm{199}}^1\times {\mathrm{541}}^1$

素因数の和:752

約数の個数: 20

約数和(自身を含む): 13116400

約数和(自身を除く): 4396021

約数列:

[1, 3, 9, 27, 81, 199, 541, 597, 1623, 1791, 4869, 5373, 14607, 16119, 43821, 107659, 322977, 968931, 2906793, 8720379]

約数ペア:

[(1, 8720379), (3, 2906793), (9, 968931), (27, 322977), (81, 107659), (199, 43821), (541, 16119), (597, 14607), (1623, 5373), (1791, 4869)]