21565743

素因数分解:

$3^1\times {\mathrm{23}}^2\times {\mathrm{107}}^1\times {\mathrm{127}}^1$

素因数の和:283

約数の個数: 24

約数和(自身を含む): 30578688

約数和(自身を除く): 9012945

約数列:

[1, 3, 23, 69, 107, 127, 321, 381, 529, 1587, 2461, 2921, 7383, 8763, 13589, 40767, 56603, 67183, 169809, 201549, 312547, 937641, 7188581, 21565743]

約数ペア:

[(1, 21565743), (3, 7188581), (23, 937641), (69, 312547), (107, 201549), (127, 169809), (321, 67183), (381, 56603), (529, 40767), (1587, 13589), (2461, 8763), (2921, 7383)]