18440037

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:135

約数の個数: 72

約数和(自身を含む): 34856640

約数和(自身を除く): 16416603

約数列:

[1, 3, 7, 9, 11, 21, 33, 41, 59, 63, 77, 99, 121, 123, 177, 231, 287, 363, 369, 413, 451, 531, 649, 693, 847, 861, 1089, 1239, 1353, 1947, 2419, 2541, 2583, 3157, 3717, 4059, 4543, 4961, 5841, 7139, 7257, 7623, 9471, 13629, 14883, 16933, 21417, 21771, 26609, 28413, 34727, 40887, 44649, 49973, 50799, 64251, 79827, 104181, 149919, 152397, 186263, 239481, 292699, 312543, 449757, 558789, 878097, 1676367, 2048893, 2634291, 6146679, 18440037]

約数ペア:

[(1, 18440037), (3, 6146679), (7, 2634291), (9, 2048893), (11, 1676367), (21, 878097), (33, 558789), (41, 449757), (59, 312543), (63, 292699), (77, 239481), (99, 186263), (121, 152397), (123, 149919), (177, 104181), (231, 79827), (287, 64251), (363, 50799), (369, 49973), (413, 44649), (451, 40887), (531, 34727), (649, 28413), (693, 26609), (847, 21771), (861, 21417), (1089, 16933), (1239, 14883), (1353, 13629), (1947, 9471), (2419, 7623), (2541, 7257), (2583, 7139), (3157, 5841), (3717, 4961), (4059, 4543)]