20990958399

素因数分解:

$3^2\times {\mathrm{127}}^1\times {\mathrm{1171}}^1\times {\mathrm{15683}}^1$

素因数の和:16987

約数の個数: 24

約数和(自身を含む): 30587062272

約数和(自身を除く): 9596103873

約数列:

[1, 3, 9, 127, 381, 1143, 1171, 3513, 10539, 15683, 47049, 141147, 148717, 446151, 1338453, 1991741, 5975223, 17925669, 18364793, 55094379, 165283137, 2332328711, 6996986133, 20990958399]

約数ペア:

[(1, 20990958399), (3, 6996986133), (9, 2332328711), (127, 165283137), (381, 55094379), (1143, 18364793), (1171, 17925669), (3513, 5975223), (10539, 1991741), (15683, 1338453), (47049, 446151), (141147, 148717)]