217720782

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{2731}}^1$

素因数の和:2885

約数の個数: 48

約数和(自身を含む): 487563648

約数和(自身を除く): 269842866

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 103, 129, 206, 258, 309, 387, 618, 774, 927, 1854, 2731, 4429, 5462, 8193, 8858, 13287, 16386, 24579, 26574, 39861, 49158, 79722, 117433, 234866, 281293, 352299, 562586, 704598, 843879, 1056897, 1687758, 2113794, 2531637, 5063274, 12095599, 24191198, 36286797, 72573594, 108860391, 217720782]

約数ペア:

[(1, 217720782), (2, 108860391), (3, 72573594), (6, 36286797), (9, 24191198), (18, 12095599), (43, 5063274), (86, 2531637), (103, 2113794), (129, 1687758), (206, 1056897), (258, 843879), (309, 704598), (387, 562586), (618, 352299), (774, 281293), (927, 234866), (1854, 117433), (2731, 79722), (4429, 49158), (5462, 39861), (8193, 26574), (8858, 24579), (13287, 16386)]