20639902

素因数分解:

$2^1\times {\mathrm{113}}^1\times {\mathrm{271}}^1\times {\mathrm{337}}^1$

素因数の和:723

約数の個数: 16

約数和(自身を含む): 31442112

約数和(自身を除く): 10802210

約数列:

[1, 2, 113, 226, 271, 337, 542, 674, 30623, 38081, 61246, 76162, 91327, 182654, 10319951, 20639902]

約数ペア:

[(1, 20639902), (2, 10319951), (113, 182654), (226, 91327), (271, 76162), (337, 61246), (542, 38081), (674, 30623)]