18051579

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:142

約数の個数: 80

約数和(自身を含む): 34693120

約数和(自身を除く): 16641541

約数列:

[1, 3, 7, 9, 13, 21, 27, 31, 39, 63, 79, 81, 91, 93, 117, 189, 217, 237, 273, 279, 351, 403, 553, 567, 651, 711, 819, 837, 1027, 1053, 1209, 1659, 1953, 2133, 2449, 2457, 2511, 2821, 3081, 3627, 4977, 5859, 6399, 7189, 7347, 7371, 8463, 9243, 10881, 14931, 17143, 17577, 21567, 22041, 25389, 27729, 31837, 32643, 44793, 51429, 64701, 66123, 76167, 83187, 95511, 154287, 194103, 198369, 222859, 228501, 286533, 462861, 582309, 668577, 859599, 1388583, 2005731, 2578797, 6017193, 18051579]

約数ペア:

[(1, 18051579), (3, 6017193), (7, 2578797), (9, 2005731), (13, 1388583), (21, 859599), (27, 668577), (31, 582309), (39, 462861), (63, 286533), (79, 228501), (81, 222859), (91, 198369), (93, 194103), (117, 154287), (189, 95511), (217, 83187), (237, 76167), (273, 66123), (279, 64701), (351, 51429), (403, 44793), (553, 32643), (567, 31837), (651, 27729), (711, 25389), (819, 22041), (837, 21567), (1027, 17577), (1053, 17143), (1209, 14931), (1659, 10881), (1953, 9243), (2133, 8463), (2449, 7371), (2457, 7347), (2511, 7189), (2821, 6399), (3081, 5859), (3627, 4977)]