19894471

素因数分解:

${\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:171

約数の個数: 24

約数和(自身を含む): 22899744

約数和(自身を除く): 3005273

約数列:

[1, 17, 23, 41, 73, 289, 391, 697, 943, 1241, 1679, 2993, 6647, 11849, 16031, 21097, 28543, 50881, 68839, 272527, 485231, 864977, 1170263, 19894471]

約数ペア:

[(1, 19894471), (17, 1170263), (23, 864977), (41, 485231), (73, 272527), (289, 68839), (391, 50881), (697, 28543), (943, 21097), (1241, 16031), (1679, 11849), (2993, 6647)]