18480717

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{13421}}^1$

素因数の和:13450

約数の個数: 20

約数和(自身を含む): 29233116

約数和(自身を除く): 10752399

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 13421, 40263, 120789, 228157, 362367, 684471, 1087101, 2053413, 6160239, 18480717]

約数ペア:

[(1, 18480717), (3, 6160239), (9, 2053413), (17, 1087101), (27, 684471), (51, 362367), (81, 228157), (153, 120789), (459, 40263), (1377, 13421)]