31131981

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{283}}^1\times {\mathrm{719}}^1$

素因数の和:1025

約数の個数: 24

約数和(自身を含む): 47848320

約数和(自身を除く): 16716339

約数列:

[1, 3, 9, 17, 51, 153, 283, 719, 849, 2157, 2547, 4811, 6471, 12223, 14433, 36669, 43299, 110007, 203477, 610431, 1831293, 3459109, 10377327, 31131981]

約数ペア:

[(1, 31131981), (3, 10377327), (9, 3459109), (17, 1831293), (51, 610431), (153, 203477), (283, 110007), (719, 43299), (849, 36669), (2157, 14433), (2547, 12223), (4811, 6471)]