81340653

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 117504000

約数和(自身を除く): 36163347

約数列:

[1, 3, 19, 57, 71, 101, 199, 213, 303, 597, 1349, 1919, 3781, 4047, 5757, 7171, 11343, 14129, 20099, 21513, 42387, 60297, 136249, 268451, 381881, 408747, 805353, 1145643, 1427029, 4281087, 27113551, 81340653]

約数ペア:

[(1, 81340653), (3, 27113551), (19, 4281087), (57, 1427029), (71, 1145643), (101, 805353), (199, 408747), (213, 381881), (303, 268451), (597, 136249), (1349, 60297), (1919, 42387), (3781, 21513), (4047, 20099), (5757, 14129), (7171, 11343)]