1320003321

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{1471}}^1$

素因数の和:1686

約数の個数: 64

約数和(自身を含む): 2294906880

約数和(自身を除く): 974903559

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 173, 247, 273, 399, 519, 741, 1211, 1471, 1729, 2249, 3287, 3633, 4413, 5187, 6747, 9861, 10297, 15743, 19123, 23009, 27949, 30891, 42731, 47229, 57369, 69027, 83847, 128193, 133861, 195643, 254483, 299117, 363337, 401583, 586929, 763449, 897351, 1090011, 1781381, 2543359, 3308279, 4835177, 5344143, 7630077, 9924837, 14505531, 23157953, 33846239, 62857301, 69473859, 101538717, 188571903, 440001107, 1320003321]

約数ペア:

[(1, 1320003321), (3, 440001107), (7, 188571903), (13, 101538717), (19, 69473859), (21, 62857301), (39, 33846239), (57, 23157953), (91, 14505531), (133, 9924837), (173, 7630077), (247, 5344143), (273, 4835177), (399, 3308279), (519, 2543359), (741, 1781381), (1211, 1090011), (1471, 897351), (1729, 763449), (2249, 586929), (3287, 401583), (3633, 363337), (4413, 299117), (5187, 254483), (6747, 195643), (9861, 133861), (10297, 128193), (15743, 83847), (19123, 69027), (23009, 57369), (27949, 47229), (30891, 42731)]