21034568

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{1301}}^1$

素因数の和:1397

約数の個数: 32

約数和(自身を含む): 41247360

約数和(自身を除く): 20212792

約数列:

[1, 2, 4, 8, 43, 47, 86, 94, 172, 188, 344, 376, 1301, 2021, 2602, 4042, 5204, 8084, 10408, 16168, 55943, 61147, 111886, 122294, 223772, 244588, 447544, 489176, 2629321, 5258642, 10517284, 21034568]

約数ペア:

[(1, 21034568), (2, 10517284), (4, 5258642), (8, 2629321), (43, 489176), (47, 447544), (86, 244588), (94, 223772), (172, 122294), (188, 111886), (344, 61147), (376, 55943), (1301, 16168), (2021, 10408), (2602, 8084), (4042, 5204)]