18764005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{16981}}^1$

素因数の和:17016

約数の個数: 16

約数和(自身を含む): 25676784

約数和(自身を除く): 6912779

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 16981, 84905, 220753, 288677, 1103765, 1443385, 3752801, 18764005]

約数ペア:

[(1, 18764005), (5, 3752801), (13, 1443385), (17, 1103765), (65, 288677), (85, 220753), (221, 84905), (1105, 16981)]