20989898793

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{2657}}^1\times {\mathrm{5737}}^1$

素因数の和:8423

約数の個数: 40

約数和(自身を含む): 33217993512

約数和(自身を除く): 12228094719

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 2657, 5737, 7971, 17211, 23913, 45169, 51633, 71739, 97529, 135507, 154899, 215217, 292587, 406521, 464697, 877761, 1219563, 2633283, 3658689, 7899849, 15243209, 45729627, 137188881, 259134553, 411566643, 777403659, 1234699929, 2332210977, 6996632931, 20989898793]

約数ペア:

[(1, 20989898793), (3, 6996632931), (9, 2332210977), (17, 1234699929), (27, 777403659), (51, 411566643), (81, 259134553), (153, 137188881), (459, 45729627), (1377, 15243209), (2657, 7899849), (5737, 3658689), (7971, 2633283), (17211, 1219563), (23913, 877761), (45169, 464697), (51633, 406521), (71739, 292587), (97529, 215217), (135507, 154899)]