71897259

素因数分解:

$3^1\times 7^3\times {\mathrm{107}}^1\times {\mathrm{653}}^1$

素因数の和:784

約数の個数: 32

約数和(自身を含む): 113011200

約数和(自身を除く): 41113941

約数列:

[1, 3, 7, 21, 49, 107, 147, 321, 343, 653, 749, 1029, 1959, 2247, 4571, 5243, 13713, 15729, 31997, 36701, 69871, 95991, 110103, 209613, 223979, 489097, 671937, 1467291, 3423679, 10271037, 23965753, 71897259]

約数ペア:

[(1, 71897259), (3, 23965753), (7, 10271037), (21, 3423679), (49, 1467291), (107, 671937), (147, 489097), (321, 223979), (343, 209613), (653, 110103), (749, 95991), (1029, 69871), (1959, 36701), (2247, 31997), (4571, 15729), (5243, 13713)]