19947716

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{4091}}^1$

素因数の和:4171

約数の個数: 24

約数和(自身を含む): 37122624

約数和(自身を除く): 17174908

約数列:

[1, 2, 4, 23, 46, 53, 92, 106, 212, 1219, 2438, 4091, 4876, 8182, 16364, 94093, 188186, 216823, 376372, 433646, 867292, 4986929, 9973858, 19947716]

約数ペア:

[(1, 19947716), (2, 9973858), (4, 4986929), (23, 867292), (46, 433646), (53, 376372), (92, 216823), (106, 188186), (212, 94093), (1219, 16364), (2438, 8182), (4091, 4876)]