201989221

素因数分解:

$7^2\times {\mathrm{47}}^1\times {\mathrm{229}}^1\times {\mathrm{383}}^1$

素因数の和:673

約数の個数: 24

約数和(自身を含む): 241643520

約数和(自身を除く): 39654299

約数列:

[1, 7, 47, 49, 229, 329, 383, 1603, 2303, 2681, 10763, 11221, 18001, 18767, 75341, 87707, 126007, 527387, 613949, 882049, 4122229, 4297643, 28855603, 201989221]

約数ペア:

[(1, 201989221), (7, 28855603), (47, 4297643), (49, 4122229), (229, 882049), (329, 613949), (383, 527387), (1603, 126007), (2303, 87707), (2681, 75341), (10763, 18767), (11221, 18001)]