20405103

素因数分解:

$3^1\times {\mathrm{149}}^1\times {\mathrm{191}}^1\times {\mathrm{239}}^1$

素因数の和:582

約数の個数: 16

約数和(自身を含む): 27648000

約数和(自身を除く): 7242897

約数列:

[1, 3, 149, 191, 239, 447, 573, 717, 28459, 35611, 45649, 85377, 106833, 136947, 6801701, 20405103]

約数ペア:

[(1, 20405103), (3, 6801701), (149, 136947), (191, 106833), (239, 85377), (447, 45649), (573, 35611), (717, 28459)]