20639410

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{187631}}^1$

素因数の和:187649

約数の個数: 16

約数和(自身を含む): 40528512

約数和(自身を除く): 19889102

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 187631, 375262, 938155, 1876310, 2063941, 4127882, 10319705, 20639410]

約数ペア:

[(1, 20639410), (2, 10319705), (5, 4127882), (10, 2063941), (11, 1876310), (22, 938155), (55, 375262), (110, 187631)]