19307826721

素因数分解:

${\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{39791}}^1$

素因数の和:39921

約数の個数: 24

約数和(自身を含む): 21695871744

約数和(自身を除く): 2388045023

約数列:

[1, 17, 23, 73, 289, 391, 1241, 1679, 6647, 21097, 28543, 39791, 485231, 676447, 915193, 2904743, 11499599, 15558281, 49380631, 66809089, 264490777, 839470727, 1135754513, 19307826721]

約数ペア:

[(1, 19307826721), (17, 1135754513), (23, 839470727), (73, 264490777), (289, 66809089), (391, 49380631), (1241, 15558281), (1679, 11499599), (6647, 2904743), (21097, 915193), (28543, 676447), (39791, 485231)]