28282023

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1103}}^1$

素因数の和:1164

約数の個数: 48

約数和(自身を含む): 52356096

約数和(自身を除く): 24074073

約数列:

[1, 3, 7, 9, 11, 21, 33, 37, 63, 77, 99, 111, 231, 259, 333, 407, 693, 777, 1103, 1221, 2331, 2849, 3309, 3663, 7721, 8547, 9927, 12133, 23163, 25641, 36399, 40811, 69489, 84931, 109197, 122433, 254793, 285677, 367299, 448921, 764379, 857031, 1346763, 2571093, 3142447, 4040289, 9427341, 28282023]

約数ペア:

[(1, 28282023), (3, 9427341), (7, 4040289), (9, 3142447), (11, 2571093), (21, 1346763), (33, 857031), (37, 764379), (63, 448921), (77, 367299), (99, 285677), (111, 254793), (231, 122433), (259, 109197), (333, 84931), (407, 69489), (693, 40811), (777, 36399), (1103, 25641), (1221, 23163), (2331, 12133), (2849, 9927), (3309, 8547), (3663, 7721)]