31778019

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{241}}^1$

素因数の和:297

約数の個数: 72

約数和(自身を含む): 60252192

約数和(自身を除く): 28474173

約数列:

[1, 3, 7, 9, 13, 21, 23, 39, 49, 63, 69, 91, 117, 147, 161, 207, 241, 273, 299, 441, 483, 637, 723, 819, 897, 1127, 1449, 1687, 1911, 2093, 2169, 2691, 3133, 3381, 5061, 5543, 5733, 6279, 9399, 10143, 11809, 14651, 15183, 16629, 18837, 21931, 28197, 35427, 38801, 43953, 49887, 65793, 72059, 106281, 116403, 131859, 153517, 197379, 216177, 271607, 349209, 460551, 504413, 648531, 814821, 1381653, 1513239, 2444463, 3530891, 4539717, 10592673, 31778019]

約数ペア:

[(1, 31778019), (3, 10592673), (7, 4539717), (9, 3530891), (13, 2444463), (21, 1513239), (23, 1381653), (39, 814821), (49, 648531), (63, 504413), (69, 460551), (91, 349209), (117, 271607), (147, 216177), (161, 197379), (207, 153517), (241, 131859), (273, 116403), (299, 106281), (441, 72059), (483, 65793), (637, 49887), (723, 43953), (819, 38801), (897, 35427), (1127, 28197), (1449, 21931), (1687, 18837), (1911, 16629), (2093, 15183), (2169, 14651), (2691, 11809), (3133, 10143), (3381, 9399), (5061, 6279), (5543, 5733)]