21989104

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{59753}}^1$

素因数の和:59784

約数の個数: 20

約数和(自身を含む): 44456976

約数和(自身を除く): 22467872

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 59753, 119506, 239012, 478024, 956048, 1374319, 2748638, 5497276, 10994552, 21989104]

約数ペア:

[(1, 21989104), (2, 10994552), (4, 5497276), (8, 2748638), (16, 1374319), (23, 956048), (46, 478024), (92, 239012), (184, 119506), (368, 59753)]