20155023

素因数分解:

$3^2\times 7^3\times {\mathrm{6529}}^1$

素因数の和:6556

約数の個数: 24

約数和(自身を含む): 33956000

約数和(自身を除く): 13800977

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 6529, 19587, 45703, 58761, 137109, 319921, 411327, 959763, 2239447, 2879289, 6718341, 20155023]

約数ペア:

[(1, 20155023), (3, 6718341), (7, 2879289), (9, 2239447), (21, 959763), (49, 411327), (63, 319921), (147, 137109), (343, 58761), (441, 45703), (1029, 19587), (3087, 6529)]