21722728

素因数分解:

$2^3\times {\mathrm{311}}^1\times {\mathrm{8731}}^1$

素因数の和:9048

約数の個数: 16

約数和(自身を含む): 40865760

約数和(自身を除く): 19143032

約数列:

[1, 2, 4, 8, 311, 622, 1244, 2488, 8731, 17462, 34924, 69848, 2715341, 5430682, 10861364, 21722728]

約数ペア:

[(1, 21722728), (2, 10861364), (4, 5430682), (8, 2715341), (311, 69848), (622, 34924), (1244, 17462), (2488, 8731)]