21000404892

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{278269}}^1$

素因数の和:278626

約数の個数: 48

約数和(自身を含む): 51735958400

約数和(自身を除く): 30735553508

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228, 331, 662, 993, 1324, 1986, 3972, 6289, 12578, 18867, 25156, 37734, 75468, 278269, 556538, 834807, 1113076, 1669614, 3339228, 5287111, 10574222, 15861333, 21148444, 31722666, 63445332, 92107039, 184214078, 276321117, 368428156, 552642234, 1105284468, 1750033741, 3500067482, 5250101223, 7000134964, 10500202446, 21000404892]

約数ペア:

[(1, 21000404892), (2, 10500202446), (3, 7000134964), (4, 5250101223), (6, 3500067482), (12, 1750033741), (19, 1105284468), (38, 552642234), (57, 368428156), (76, 276321117), (114, 184214078), (228, 92107039), (331, 63445332), (662, 31722666), (993, 21148444), (1324, 15861333), (1986, 10574222), (3972, 5287111), (6289, 3339228), (12578, 1669614), (18867, 1113076), (25156, 834807), (37734, 556538), (75468, 278269)]