212316507

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{641}}^1$

素因数の和:828

約数の個数: 48

約数和(自身を含む): 350532000

約数和(自身を除く): 138215493

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 149, 171, 247, 447, 641, 741, 1341, 1923, 1937, 2223, 2831, 5769, 5811, 8333, 8493, 12179, 17433, 24999, 25479, 36537, 36803, 74997, 95509, 109611, 110409, 158327, 286527, 331227, 474981, 859581, 1241617, 1424943, 1814671, 3724851, 5444013, 11174553, 16332039, 23590723, 70772169, 212316507]

約数ペア:

[(1, 212316507), (3, 70772169), (9, 23590723), (13, 16332039), (19, 11174553), (39, 5444013), (57, 3724851), (117, 1814671), (149, 1424943), (171, 1241617), (247, 859581), (447, 474981), (641, 331227), (741, 286527), (1341, 158327), (1923, 110409), (1937, 109611), (2223, 95509), (2831, 74997), (5769, 36803), (5811, 36537), (8333, 25479), (8493, 24999), (12179, 17433)]