31004919

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{401}}^1$

素因数の和:500

約数の個数: 36

約数和(自身を含む): 50044176

約数和(自身を除く): 19039257

約数列:

[1, 3, 9, 11, 33, 71, 99, 121, 213, 363, 401, 639, 781, 1089, 1203, 2343, 3609, 4411, 7029, 8591, 13233, 25773, 28471, 39699, 48521, 77319, 85413, 145563, 256239, 313181, 436689, 939543, 2818629, 3444991, 10334973, 31004919]

約数ペア:

[(1, 31004919), (3, 10334973), (9, 3444991), (11, 2818629), (33, 939543), (71, 436689), (99, 313181), (121, 256239), (213, 145563), (363, 85413), (401, 77319), (639, 48521), (781, 39699), (1089, 28471), (1203, 25773), (2343, 13233), (3609, 8591), (4411, 7029)]