20402172891

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{164233}}^1$

素因数の和:164392

約数の個数: 32

約数和(自身を含む): 31217598720

約数和(自身を除く): 10815425829

約数列:

[1, 3, 9, 27, 43, 107, 129, 321, 387, 963, 1161, 2889, 4601, 13803, 41409, 124227, 164233, 492699, 1478097, 4434291, 7062019, 17572931, 21186057, 52718793, 63558171, 158156379, 190674513, 474469137, 755636033, 2266908099, 6800724297, 20402172891]

約数ペア:

[(1, 20402172891), (3, 6800724297), (9, 2266908099), (27, 755636033), (43, 474469137), (107, 190674513), (129, 158156379), (321, 63558171), (387, 52718793), (963, 21186057), (1161, 17572931), (2889, 7062019), (4601, 4434291), (13803, 1478097), (41409, 492699), (124227, 164233)]