81966843

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{263}}^1$

素因数の和:393

約数の個数: 64

約数和(自身を含む): 149022720

約数和(自身を除く): 67055877

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 97, 119, 153, 189, 263, 291, 357, 459, 679, 789, 873, 1071, 1649, 1841, 2037, 2367, 2619, 3213, 4471, 4947, 5523, 6111, 7101, 11543, 13413, 14841, 16569, 18333, 25511, 31297, 34629, 40239, 44523, 49707, 76533, 93891, 103887, 120717, 178577, 229599, 281673, 311661, 433687, 535731, 688797, 845019, 1301061, 1607193, 3035809, 3903183, 4821579, 9107427, 11709549, 27322281, 81966843]

約数ペア:

[(1, 81966843), (3, 27322281), (7, 11709549), (9, 9107427), (17, 4821579), (21, 3903183), (27, 3035809), (51, 1607193), (63, 1301061), (97, 845019), (119, 688797), (153, 535731), (189, 433687), (263, 311661), (291, 281673), (357, 229599), (459, 178577), (679, 120717), (789, 103887), (873, 93891), (1071, 76533), (1649, 49707), (1841, 44523), (2037, 40239), (2367, 34629), (2619, 31297), (3213, 25511), (4471, 18333), (4947, 16569), (5523, 14841), (6111, 13413), (7101, 11543)]