21659187

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{1559}}^1$

素因数の和:1994

約数の個数: 16

約数和(自身を含む): 31599360

約数和(自身を除く): 9940173

約数列:

[1, 3, 11, 33, 421, 1263, 1559, 4631, 4677, 13893, 17149, 51447, 656339, 1969017, 7219729, 21659187]

約数ペア:

[(1, 21659187), (3, 7219729), (11, 1969017), (33, 656339), (421, 51447), (1263, 17149), (1559, 13893), (4631, 4677)]