21916984

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{51691}}^1$

素因数の和:51750

約数の個数: 16

約数和(自身を含む): 41870520

約数和(自身を除く): 19953536

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 51691, 103382, 206764, 413528, 2739623, 5479246, 10958492, 21916984]

約数ペア:

[(1, 21916984), (2, 10958492), (4, 5479246), (8, 2739623), (53, 413528), (106, 206764), (212, 103382), (424, 51691)]