81965871

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{797}}^1$

素因数の和:1112

約数の個数: 32

約数和(自身を含む): 131382720

約数和(自身を除く): 49416849

約数列:

[1, 3, 9, 13, 27, 39, 117, 293, 351, 797, 879, 2391, 2637, 3809, 7173, 7911, 10361, 11427, 21519, 31083, 34281, 93249, 102843, 233521, 279747, 700563, 2101689, 3035773, 6305067, 9107319, 27321957, 81965871]

約数ペア:

[(1, 81965871), (3, 27321957), (9, 9107319), (13, 6305067), (27, 3035773), (39, 2101689), (117, 700563), (293, 279747), (351, 233521), (797, 102843), (879, 93249), (2391, 34281), (2637, 31083), (3809, 21519), (7173, 11427), (7911, 10361)]