123020919

素因数分解:

$3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{3929}}^1$

素因数の和:4020

約数の個数: 36

約数和(自身を含む): 209673360

約数和(自身を除く): 86652441

約数列:

[1, 3, 7, 9, 21, 49, 63, 71, 147, 213, 441, 497, 639, 1491, 3479, 3929, 4473, 10437, 11787, 27503, 31311, 35361, 82509, 192521, 247527, 278959, 577563, 836877, 1732689, 1952713, 2510631, 5858139, 13668991, 17574417, 41006973, 123020919]

約数ペア:

[(1, 123020919), (3, 41006973), (7, 17574417), (9, 13668991), (21, 5858139), (49, 2510631), (63, 1952713), (71, 1732689), (147, 836877), (213, 577563), (441, 278959), (497, 247527), (639, 192521), (1491, 82509), (3479, 35361), (3929, 31311), (4473, 27503), (10437, 11787)]