20129751

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{883}}^1$

素因数の和:1055

約数の個数: 24

約数和(自身を含む): 31028400

約数和(自身を除く): 10898649

約数列:

[1, 3, 9, 17, 51, 149, 153, 447, 883, 1341, 2533, 2649, 7599, 7947, 15011, 22797, 45033, 131567, 135099, 394701, 1184103, 2236639, 6709917, 20129751]

約数ペア:

[(1, 20129751), (3, 6709917), (9, 2236639), (17, 1184103), (51, 394701), (149, 135099), (153, 131567), (447, 45033), (883, 22797), (1341, 15011), (2533, 7947), (2649, 7599)]