31129785

素因数分解:

$3^3\times 5^1\times {\mathrm{293}}^1\times {\mathrm{787}}^1$

素因数の和:1094

約数の個数: 32

約数和(自身を含む): 55601280

約数和(自身を除く): 24471495

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 293, 787, 879, 1465, 2361, 2637, 3935, 4395, 7083, 7911, 11805, 13185, 21249, 35415, 39555, 106245, 230591, 691773, 1152955, 2075319, 3458865, 6225957, 10376595, 31129785]

約数ペア:

[(1, 31129785), (3, 10376595), (5, 6225957), (9, 3458865), (15, 2075319), (27, 1152955), (45, 691773), (135, 230591), (293, 106245), (787, 39555), (879, 35415), (1465, 21249), (2361, 13185), (2637, 11805), (3935, 7911), (4395, 7083)]