20563665

素因数分解:

$3^1\times 5^1\times {\mathrm{83}}^2\times {\mathrm{199}}^1$

素因数の和:373

約数の個数: 24

約数和(自身を含む): 33470400

約数和(自身を除く): 12906735

約数列:

[1, 3, 5, 15, 83, 199, 249, 415, 597, 995, 1245, 2985, 6889, 16517, 20667, 34445, 49551, 82585, 103335, 247755, 1370911, 4112733, 6854555, 20563665]

約数ペア:

[(1, 20563665), (3, 6854555), (5, 4112733), (15, 1370911), (83, 247755), (199, 103335), (249, 82585), (415, 49551), (597, 34445), (995, 20667), (1245, 16517), (2985, 6889)]