18867843

素因数分解:

$3^3\times {\mathrm{23}}^2\times {\mathrm{1321}}^1$

素因数の和:1376

約数の個数: 24

約数和(自身を含む): 29242640

約数和(自身を除く): 10374797

約数列:

[1, 3, 9, 23, 27, 69, 207, 529, 621, 1321, 1587, 3963, 4761, 11889, 14283, 30383, 35667, 91149, 273447, 698809, 820341, 2096427, 6289281, 18867843]

約数ペア:

[(1, 18867843), (3, 6289281), (9, 2096427), (23, 820341), (27, 698809), (69, 273447), (207, 91149), (529, 35667), (621, 30383), (1321, 14283), (1587, 11889), (3963, 4761)]