20199003

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:355

約数の個数: 32

約数和(自身を含む): 30730752

約数和(自身を除く): 10531749

約数列:

[1, 3, 11, 33, 37, 71, 111, 213, 233, 407, 699, 781, 1221, 2343, 2563, 2627, 7689, 7881, 8621, 16543, 25863, 28897, 49629, 86691, 94831, 181973, 284493, 545919, 612091, 1836273, 6733001, 20199003]

約数ペア:

[(1, 20199003), (3, 6733001), (11, 1836273), (33, 612091), (37, 545919), (71, 284493), (111, 181973), (213, 94831), (233, 86691), (407, 49629), (699, 28897), (781, 25863), (1221, 16543), (2343, 8621), (2563, 7881), (2627, 7689)]