20927709

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{1543}}^1$

素因数の和:1697

約数の個数: 24

約数和(自身を含む): 33239232

約数和(自身を除く): 12311523

約数列:

[1, 3, 9, 11, 33, 99, 137, 411, 1233, 1507, 1543, 4521, 4629, 13563, 13887, 16973, 50919, 152757, 211391, 634173, 1902519, 2325301, 6975903, 20927709]

約数ペア:

[(1, 20927709), (3, 6975903), (9, 2325301), (11, 1902519), (33, 634173), (99, 211391), (137, 152757), (411, 50919), (1233, 16973), (1507, 13887), (1543, 13563), (4521, 4629)]