210656439

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{811}}^1$

素因数の和:881

約数の個数: 72

約数和(自身を含む): 385082880

約数和(自身を除く): 174426441

約数列:

[1, 3, 7, 9, 19, 21, 31, 49, 57, 63, 93, 133, 147, 171, 217, 279, 399, 441, 589, 651, 811, 931, 1197, 1519, 1767, 1953, 2433, 2793, 4123, 4557, 5301, 5677, 7299, 8379, 12369, 13671, 15409, 17031, 25141, 28861, 37107, 39739, 46227, 51093, 75423, 86583, 107863, 119217, 138681, 175987, 226269, 259749, 323589, 357651, 477679, 527961, 755041, 970767, 1231909, 1433037, 1583883, 2265123, 3343753, 3695727, 4299111, 6795369, 10031259, 11087181, 23406271, 30093777, 70218813, 210656439]

約数ペア:

[(1, 210656439), (3, 70218813), (7, 30093777), (9, 23406271), (19, 11087181), (21, 10031259), (31, 6795369), (49, 4299111), (57, 3695727), (63, 3343753), (93, 2265123), (133, 1583883), (147, 1433037), (171, 1231909), (217, 970767), (279, 755041), (399, 527961), (441, 477679), (589, 357651), (651, 323589), (811, 259749), (931, 226269), (1197, 175987), (1519, 138681), (1767, 119217), (1953, 107863), (2433, 86583), (2793, 75423), (4123, 51093), (4557, 46227), (5301, 39739), (5677, 37107), (7299, 28861), (8379, 25141), (12369, 17031), (13671, 15409)]