721089

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{1571}}^1$

素因数の和:1597

約数の個数: 16

約数和(自身を含む): 1131840

約数和(自身を除く): 410751

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 1571, 4713, 14139, 26707, 42417, 80121, 240363, 721089]

約数ペア:

[(1, 721089), (3, 240363), (9, 80121), (17, 42417), (27, 26707), (51, 14139), (153, 4713), (459, 1571)]