20824479

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{751}}^1$

素因数の和:852

約数の個数: 32

約数和(自身を含む): 33689600

約数和(自身を除く): 12865121

約数列:

[1, 3, 9, 13, 27, 39, 79, 117, 237, 351, 711, 751, 1027, 2133, 2253, 3081, 6759, 9243, 9763, 20277, 27729, 29289, 59329, 87867, 177987, 263601, 533961, 771277, 1601883, 2313831, 6941493, 20824479]

約数ペア:

[(1, 20824479), (3, 6941493), (9, 2313831), (13, 1601883), (27, 771277), (39, 533961), (79, 263601), (117, 177987), (237, 87867), (351, 59329), (711, 29289), (751, 27729), (1027, 20277), (2133, 9763), (2253, 9243), (3081, 6759)]