28448301

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:154

約数の個数: 64

約数和(自身を含む): 49029120

約数和(自身を除く): 20580819

約数列:

[1, 3, 7, 19, 21, 37, 41, 47, 57, 111, 123, 133, 141, 259, 287, 329, 399, 703, 777, 779, 861, 893, 987, 1517, 1739, 1927, 2109, 2337, 2679, 4551, 4921, 5217, 5453, 5781, 6251, 10619, 12173, 13489, 14763, 16359, 18753, 28823, 31857, 33041, 36519, 36613, 40467, 71299, 86469, 99123, 109839, 201761, 213897, 231287, 256291, 499093, 605283, 693861, 768873, 1354681, 1497279, 4064043, 9482767, 28448301]

約数ペア:

[(1, 28448301), (3, 9482767), (7, 4064043), (19, 1497279), (21, 1354681), (37, 768873), (41, 693861), (47, 605283), (57, 499093), (111, 256291), (123, 231287), (133, 213897), (141, 201761), (259, 109839), (287, 99123), (329, 86469), (399, 71299), (703, 40467), (777, 36613), (779, 36519), (861, 33041), (893, 31857), (987, 28823), (1517, 18753), (1739, 16359), (1927, 14763), (2109, 13489), (2337, 12173), (2679, 10619), (4551, 6251), (4921, 5781), (5217, 5453)]