31272021

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1483}}^1$

素因数の和:1574

約数の個数: 32

約数和(自身を含む): 51287040

約数和(自身を除く): 20015019

約数列:

[1, 3, 9, 11, 27, 33, 71, 99, 213, 297, 639, 781, 1483, 1917, 2343, 4449, 7029, 13347, 16313, 21087, 40041, 48939, 105293, 146817, 315879, 440451, 947637, 1158223, 2842911, 3474669, 10424007, 31272021]

約数ペア:

[(1, 31272021), (3, 10424007), (9, 3474669), (11, 2842911), (27, 1158223), (33, 947637), (71, 440451), (99, 315879), (213, 146817), (297, 105293), (639, 48939), (781, 40041), (1483, 21087), (1917, 16313), (2343, 13347), (4449, 7029)]