19155891097

素因数分解:

$7^4\times {\mathrm{47}}^1\times {\mathrm{169751}}^1$

素因数の和:169826

約数の個数: 20

約数和(自身を含む): 22822816896

約数和(自身を除く): 3666925799

約数列:

[1, 7, 47, 49, 329, 343, 2303, 2401, 16121, 112847, 169751, 1188257, 7978297, 8317799, 55848079, 58224593, 390936553, 407572151, 2736555871, 19155891097]

約数ペア:

[(1, 19155891097), (7, 2736555871), (47, 407572151), (49, 390936553), (329, 58224593), (343, 55848079), (2303, 8317799), (2401, 7978297), (16121, 1188257), (112847, 169751)]