21896804

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{2087}}^1$

素因数の和:2195

約数の個数: 24

約数和(自身を含む): 39872448

約数和(自身を除く): 17975644

約数列:

[1, 2, 4, 43, 61, 86, 122, 172, 244, 2087, 2623, 4174, 5246, 8348, 10492, 89741, 127307, 179482, 254614, 358964, 509228, 5474201, 10948402, 21896804]

約数ペア:

[(1, 21896804), (2, 10948402), (4, 5474201), (43, 509228), (61, 358964), (86, 254614), (122, 179482), (172, 127307), (244, 89741), (2087, 10492), (2623, 8348), (4174, 5246)]