21816328

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{853}}^1$

素因数の和:1021

約数の個数: 32

約数和(自身を含む): 43041600

約数和(自身を除く): 21225272

約数列:

[1, 2, 4, 8, 23, 46, 92, 139, 184, 278, 556, 853, 1112, 1706, 3197, 3412, 6394, 6824, 12788, 19619, 25576, 39238, 78476, 118567, 156952, 237134, 474268, 948536, 2727041, 5454082, 10908164, 21816328]

約数ペア:

[(1, 21816328), (2, 10908164), (4, 5454082), (8, 2727041), (23, 948536), (46, 474268), (92, 237134), (139, 156952), (184, 118567), (278, 78476), (556, 39238), (853, 25576), (1112, 19619), (1706, 12788), (3197, 6824), (3412, 6394)]