21819376

素因数分解:

$2^4\times {\mathrm{823}}^1\times {\mathrm{1657}}^1$

素因数の和:2488

約数の個数: 20

約数和(自身を含む): 42351952

約数和(自身を除く): 20532576

約数列:

[1, 2, 4, 8, 16, 823, 1646, 1657, 3292, 3314, 6584, 6628, 13168, 13256, 26512, 1363711, 2727422, 5454844, 10909688, 21819376]

約数ペア:

[(1, 21819376), (2, 10909688), (4, 5454844), (8, 2727422), (16, 1363711), (823, 26512), (1646, 13256), (1657, 13168), (3292, 6628), (3314, 6584)]