19519810

素因数分解:

$2^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{12433}}^1$

素因数の和:12597

約数の個数: 16

約数和(自身を含む): 35362296

約数和(自身を除く): 15842486

約数列:

[1, 2, 5, 10, 157, 314, 785, 1570, 12433, 24866, 62165, 124330, 1951981, 3903962, 9759905, 19519810]

約数ペア:

[(1, 19519810), (2, 9759905), (5, 3903962), (10, 1951981), (157, 124330), (314, 62165), (785, 24866), (1570, 12433)]