20199613

素因数分解:

$7^4\times {\mathrm{47}}^1\times {\mathrm{179}}^1$

素因数の和:254

約数の個数: 20

約数和(自身を含む): 24200640

約数和(自身を除く): 4001027

約数列:

[1, 7, 47, 49, 179, 329, 343, 1253, 2303, 2401, 8413, 8771, 16121, 58891, 61397, 112847, 412237, 429779, 2885659, 20199613]

約数ペア:

[(1, 20199613), (7, 2885659), (47, 429779), (49, 412237), (179, 112847), (329, 61397), (343, 58891), (1253, 16121), (2303, 8771), (2401, 8413)]