18609237

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{40543}}^1$

素因数の和:40569

約数の個数: 16

約数和(自身を含む): 29191680

約数和(自身を除く): 10582443

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 40543, 121629, 364887, 689231, 1094661, 2067693, 6203079, 18609237]

約数ペア:

[(1, 18609237), (3, 6203079), (9, 2067693), (17, 1094661), (27, 689231), (51, 364887), (153, 121629), (459, 40543)]