20009391

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1$

素因数の和:295

約数の個数: 32

約数和(自身を含む): 29756160

約数和(自身を除く): 9746769

約数列:

[1, 3, 17, 29, 51, 83, 87, 163, 249, 489, 493, 1411, 1479, 2407, 2771, 4233, 4727, 7221, 8313, 13529, 14181, 40587, 40919, 80359, 122757, 229993, 241077, 392341, 689979, 1177023, 6669797, 20009391]

約数ペア:

[(1, 20009391), (3, 6669797), (17, 1177023), (29, 689979), (51, 392341), (83, 241077), (87, 229993), (163, 122757), (249, 80359), (489, 40919), (493, 40587), (1411, 14181), (1479, 13529), (2407, 8313), (2771, 7221), (4233, 4727)]