18840335

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{419}}^1$

素因数の和:487

約数の個数: 24

約数和(自身を含む): 25084080

約数和(自身を除く): 6243745

約数列:

[1, 5, 17, 23, 85, 115, 391, 419, 529, 1955, 2095, 2645, 7123, 8993, 9637, 35615, 44965, 48185, 163829, 221651, 819145, 1108255, 3768067, 18840335]

約数ペア:

[(1, 18840335), (5, 3768067), (17, 1108255), (23, 819145), (85, 221651), (115, 163829), (391, 48185), (419, 44965), (529, 35615), (1955, 9637), (2095, 8993), (2645, 7123)]