1638806778

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{3329}}^1\times {\mathrm{3907}}^1$

素因数の和:7251

約数の個数: 48

約数和(自身を含む): 4060255680

約数和(自身を除く): 2421448902

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 3329, 3907, 6658, 7814, 9987, 11721, 19974, 23303, 23442, 27349, 29961, 35163, 46606, 54698, 59922, 69909, 70326, 82047, 139818, 164094, 209727, 246141, 419454, 492282, 13006403, 26012806, 39019209, 78038418, 91044821, 117057627, 182089642, 234115254, 273134463, 546268926, 819403389, 1638806778]

約数ペア:

[(1, 1638806778), (2, 819403389), (3, 546268926), (6, 273134463), (7, 234115254), (9, 182089642), (14, 117057627), (18, 91044821), (21, 78038418), (42, 39019209), (63, 26012806), (126, 13006403), (3329, 492282), (3907, 419454), (6658, 246141), (7814, 209727), (9987, 164094), (11721, 139818), (19974, 82047), (23303, 70326), (23442, 69909), (27349, 59922), (29961, 54698), (35163, 46606)]