19800999

素因数分解:

$3^2\times {\mathrm{23}}^2\times {\mathrm{4159}}^1$

素因数の和:4211

約数の個数: 18

約数和(自身を含む): 29906240

約数和(自身を除く): 10105241

約数列:

[1, 3, 9, 23, 69, 207, 529, 1587, 4159, 4761, 12477, 37431, 95657, 286971, 860913, 2200111, 6600333, 19800999]

約数ペア:

[(1, 19800999), (3, 6600333), (9, 2200111), (23, 860913), (69, 286971), (207, 95657), (529, 37431), (1587, 12477), (4159, 4761)]