21049618

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{1559}}^1$

素因数の和:1761

約数の個数: 16

約数和(自身を含む): 32535360

約数和(自身を除く): 11485742

約数列:

[1, 2, 43, 86, 157, 314, 1559, 3118, 6751, 13502, 67037, 134074, 244763, 489526, 10524809, 21049618]

約数ペア:

[(1, 21049618), (2, 10524809), (43, 489526), (86, 244763), (157, 134074), (314, 67037), (1559, 13502), (3118, 6751)]