259749

素因数分解:

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

素因数の和:70

約数の個数: 36

約数和(自身を含む): 474240

約数和(自身を除く): 214491

約数列:

[1, 3, 7, 9, 19, 21, 31, 49, 57, 63, 93, 133, 147, 171, 217, 279, 399, 441, 589, 651, 931, 1197, 1519, 1767, 1953, 2793, 4123, 4557, 5301, 8379, 12369, 13671, 28861, 37107, 86583, 259749]

約数ペア:

[(1, 259749), (3, 86583), (7, 37107), (9, 28861), (19, 13671), (21, 12369), (31, 8379), (49, 5301), (57, 4557), (63, 4123), (93, 2793), (133, 1953), (147, 1767), (171, 1519), (217, 1197), (279, 931), (399, 651), (441, 589)]