22768209

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:227

約数の個数: 40

約数和(自身を含む): 35754048

約数和(自身を除く): 12985839

約数列:

[1, 3, 9, 27, 37, 71, 81, 107, 111, 213, 321, 333, 639, 963, 999, 1917, 2627, 2889, 2997, 3959, 5751, 7597, 7881, 8667, 11877, 22791, 23643, 35631, 68373, 70929, 106893, 205119, 212787, 281089, 320679, 615357, 843267, 2529801, 7589403, 22768209]

約数ペア:

[(1, 22768209), (3, 7589403), (9, 2529801), (27, 843267), (37, 615357), (71, 320679), (81, 281089), (107, 212787), (111, 205119), (213, 106893), (321, 70929), (333, 68373), (639, 35631), (963, 23643), (999, 22791), (1917, 11877), (2627, 8667), (2889, 7881), (2997, 7597), (3959, 5751)]