20864841

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{4259}}^1$

素因数の和:4356

約数の個数: 16

約数和(自身を含む): 29445120

約数和(自身を除く): 8580279

約数列:

[1, 3, 23, 69, 71, 213, 1633, 4259, 4899, 12777, 97957, 293871, 302389, 907167, 6954947, 20864841]

約数ペア:

[(1, 20864841), (3, 6954947), (23, 907167), (69, 302389), (71, 293871), (213, 97957), (1633, 12777), (4259, 4899)]