20153619

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{839}}^1$

素因数の和:1019

約数の個数: 24

約数和(自身を含む): 31056480

約数和(自身を除く): 10902861

約数列:

[1, 3, 9, 17, 51, 153, 157, 471, 839, 1413, 2517, 2669, 7551, 8007, 14263, 24021, 42789, 128367, 131723, 395169, 1185507, 2239291, 6717873, 20153619]

約数ペア:

[(1, 20153619), (3, 6717873), (9, 2239291), (17, 1185507), (51, 395169), (153, 131723), (157, 128367), (471, 42789), (839, 24021), (1413, 14263), (2517, 8007), (2669, 7551)]