21099441

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{27799}}^1$

素因数の和:27836

約数の個数: 16

約数和(自身を含む): 32025600

約数和(自身を除く): 10926159

約数列:

[1, 3, 11, 23, 33, 69, 253, 759, 27799, 83397, 305789, 639377, 917367, 1918131, 7033147, 21099441]

約数ペア:

[(1, 21099441), (3, 7033147), (11, 1918131), (23, 917367), (33, 639377), (69, 305789), (253, 83397), (759, 27799)]