19912457

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{401}}^1$

素因数の和:568

約数の個数: 16

約数和(自身を含む): 22228992

約数和(自身を除く): 2316535

約数列:

[1, 17, 23, 127, 391, 401, 2159, 2921, 6817, 9223, 49657, 50927, 156791, 865759, 1171321, 19912457]

約数ペア:

[(1, 19912457), (17, 1171321), (23, 865759), (127, 156791), (391, 50927), (401, 49657), (2159, 9223), (2921, 6817)]