18689643

素因数分解:

$3^3\times 7^1\times {\mathrm{98887}}^1$

素因数の和:98903

約数の個数: 16

約数和(自身を含む): 31644160

約数和(自身を除く): 12954517

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 98887, 296661, 692209, 889983, 2076627, 2669949, 6229881, 18689643]

約数ペア:

[(1, 18689643), (3, 6229881), (7, 2669949), (9, 2076627), (21, 889983), (27, 692209), (63, 296661), (189, 98887)]