20427345

素因数分解:

$3^2\times 5^1\times {\mathrm{373}}^1\times {\mathrm{1217}}^1$

素因数の和:1601

約数の個数: 24

約数和(自身を含む): 35531496

約数和(自身を除く): 15104151

約数列:

[1, 3, 5, 9, 15, 45, 373, 1119, 1217, 1865, 3357, 3651, 5595, 6085, 10953, 16785, 18255, 54765, 453941, 1361823, 2269705, 4085469, 6809115, 20427345]

約数ペア:

[(1, 20427345), (3, 6809115), (5, 4085469), (9, 2269705), (15, 1361823), (45, 453941), (373, 54765), (1119, 18255), (1217, 16785), (1865, 10953), (3357, 6085), (3651, 5595)]