18996909113

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1447}}^1\times {\mathrm{1621}}^1$

素因数の和:3177

約数の個数: 32

約数和(自身を含む): 23674452480

約数和(自身を除く): 4677543367

約数列:

[1, 7, 13, 89, 91, 623, 1157, 1447, 1621, 8099, 10129, 11347, 18811, 21073, 128783, 131677, 144269, 147511, 901481, 1009883, 1674179, 1875497, 2345587, 11719253, 13128479, 16419109, 30492631, 208757243, 213448417, 1461300701, 2713844159, 18996909113]

約数ペア:

[(1, 18996909113), (7, 2713844159), (13, 1461300701), (89, 213448417), (91, 208757243), (623, 30492631), (1157, 16419109), (1447, 13128479), (1621, 11719253), (8099, 2345587), (10129, 1875497), (11347, 1674179), (18811, 1009883), (21073, 901481), (128783, 147511), (131677, 144269)]