18447021

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{4297}}^1$

素因数の和:4362

約数の個数: 20

約数和(自身を含む): 28083132

約数和(自身を除く): 9636111

約数列:

[1, 3, 9, 27, 53, 81, 159, 477, 1431, 4293, 4297, 12891, 38673, 116019, 227741, 348057, 683223, 2049669, 6149007, 18447021]

約数ペア:

[(1, 18447021), (3, 6149007), (9, 2049669), (27, 683223), (53, 348057), (81, 227741), (159, 116019), (477, 38673), (1431, 12891), (4293, 4297)]