12807081

素因数分解:

$3^2\times 7^2\times {\mathrm{113}}^1\times {\mathrm{257}}^1$

素因数の和:390

約数の個数: 36

約数和(自身を含む): 21794292

約数和(自身を除く): 8987211

約数列:

[1, 3, 7, 9, 21, 49, 63, 113, 147, 257, 339, 441, 771, 791, 1017, 1799, 2313, 2373, 5397, 5537, 7119, 12593, 16191, 16611, 29041, 37779, 49833, 87123, 113337, 203287, 261369, 609861, 1423009, 1829583, 4269027, 12807081]

約数ペア:

[(1, 12807081), (3, 4269027), (7, 1829583), (9, 1423009), (21, 609861), (49, 261369), (63, 203287), (113, 113337), (147, 87123), (257, 49833), (339, 37779), (441, 29041), (771, 16611), (791, 16191), (1017, 12593), (1799, 7119), (2313, 5537), (2373, 5397)]