18662301

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{83}}^2$

素因数の和:222

約数の個数: 36

約数和(自身を含む): 31908448

約数和(自身を除く): 13246147

約数列:

[1, 3, 7, 9, 21, 43, 63, 83, 129, 249, 301, 387, 581, 747, 903, 1743, 2709, 3569, 5229, 6889, 10707, 20667, 24983, 32121, 48223, 62001, 74949, 144669, 224847, 296227, 434007, 888681, 2073589, 2666043, 6220767, 18662301]

約数ペア:

[(1, 18662301), (3, 6220767), (7, 2666043), (9, 2073589), (21, 888681), (43, 434007), (63, 296227), (83, 224847), (129, 144669), (249, 74949), (301, 62001), (387, 48223), (581, 32121), (747, 24983), (903, 20667), (1743, 10707), (2709, 6889), (3569, 5229)]