13431978

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:276

約数の個数: 72

約数和(自身を含む): 34420932

約数和(自身を除く): 20988954

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 97, 98, 126, 147, 157, 194, 291, 294, 314, 441, 471, 582, 679, 873, 882, 942, 1099, 1358, 1413, 1746, 2037, 2198, 2826, 3297, 4074, 4753, 6111, 6594, 7693, 9506, 9891, 12222, 14259, 15229, 15386, 19782, 23079, 28518, 30458, 42777, 45687, 46158, 69237, 85554, 91374, 106603, 137061, 138474, 213206, 274122, 319809, 639618, 746221, 959427, 1492442, 1918854, 2238663, 4477326, 6715989, 13431978]

約数ペア:

[(1, 13431978), (2, 6715989), (3, 4477326), (6, 2238663), (7, 1918854), (9, 1492442), (14, 959427), (18, 746221), (21, 639618), (42, 319809), (49, 274122), (63, 213206), (97, 138474), (98, 137061), (126, 106603), (147, 91374), (157, 85554), (194, 69237), (291, 46158), (294, 45687), (314, 42777), (441, 30458), (471, 28518), (582, 23079), (679, 19782), (873, 15386), (882, 15229), (942, 14259), (1099, 12222), (1358, 9891), (1413, 9506), (1746, 7693), (2037, 6594), (2198, 6111), (2826, 4753), (3297, 4074)]