18016587

素因数分解:

$3^4\times {\mathrm{347}}^1\times {\mathrm{641}}^1$

素因数の和:1000

約数の個数: 20

約数和(自身を含む): 27033336

約数和(自身を除く): 9016749

約数列:

[1, 3, 9, 27, 81, 347, 641, 1041, 1923, 3123, 5769, 9369, 17307, 28107, 51921, 222427, 667281, 2001843, 6005529, 18016587]

約数ペア:

[(1, 18016587), (3, 6005529), (9, 2001843), (27, 667281), (81, 222427), (347, 51921), (641, 28107), (1041, 17307), (1923, 9369), (3123, 5769)]