209128867

素因数分解:

${\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:558

約数の個数: 16

約数和(自身を含む): 217190592

約数和(自身を除く): 8061725

約数列:

[1, 71, 73, 157, 257, 5183, 11147, 11461, 18247, 18761, 40349, 813731, 1332031, 2864779, 2945477, 209128867]

約数ペア:

[(1, 209128867), (71, 2945477), (73, 2864779), (157, 1332031), (257, 813731), (5183, 40349), (11147, 18761), (11461, 18247)]