21043024

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{8377}}^1$

素因数の和:8542

約数の個数: 20

約数和(自身を含む): 41035444

約数和(自身を除く): 19992420

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 8377, 16754, 33508, 67016, 134032, 1315189, 2630378, 5260756, 10521512, 21043024]

約数ペア:

[(1, 21043024), (2, 10521512), (4, 5260756), (8, 2630378), (16, 1315189), (157, 134032), (314, 67016), (628, 33508), (1256, 16754), (2512, 8377)]