21089872

素因数分解:

$2^4\times {\mathrm{211}}^1\times {\mathrm{6247}}^1$

素因数の和:6466

約数の個数: 20

約数和(自身を含む): 41061856

約数和(自身を除く): 19971984

約数列:

[1, 2, 4, 8, 16, 211, 422, 844, 1688, 3376, 6247, 12494, 24988, 49976, 99952, 1318117, 2636234, 5272468, 10544936, 21089872]

約数ペア:

[(1, 21089872), (2, 10544936), (4, 5272468), (8, 2636234), (16, 1318117), (211, 99952), (422, 49976), (844, 24988), (1688, 12494), (3376, 6247)]