21550281

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{1117}}^1$

素因数の和:1288

約数の個数: 16

約数和(自身を含む): 29515200

約数和(自身を除く): 7964919

約数列:

[1, 3, 59, 109, 177, 327, 1117, 3351, 6431, 19293, 65903, 121753, 197709, 365259, 7183427, 21550281]

約数ペア:

[(1, 21550281), (3, 7183427), (59, 365259), (109, 197709), (177, 121753), (327, 65903), (1117, 19293), (3351, 6431)]