20117566

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{547}}^1$

素因数の和:664

約数の個数: 32

約数和(自身を含む): 35983872

約数和(自身を除く): 15866306

約数列:

[1, 2, 7, 14, 37, 71, 74, 142, 259, 497, 518, 547, 994, 1094, 2627, 3829, 5254, 7658, 18389, 20239, 36778, 38837, 40478, 77674, 141673, 271859, 283346, 543718, 1436969, 2873938, 10058783, 20117566]

約数ペア:

[(1, 20117566), (2, 10058783), (7, 2873938), (14, 1436969), (37, 543718), (71, 283346), (74, 271859), (142, 141673), (259, 77674), (497, 40478), (518, 38837), (547, 36778), (994, 20239), (1094, 18389), (2627, 7658), (3829, 5254)]