21758301

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{6247}}^1$

素因数の和:6302

約数の個数: 20

約数和(自身を含む): 33264352

約数和(自身を除く): 11506051

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 6247, 18741, 56223, 168669, 268621, 506007, 805863, 2417589, 7252767, 21758301]

約数ペア:

[(1, 21758301), (3, 7252767), (9, 2417589), (27, 805863), (43, 506007), (81, 268621), (129, 168669), (387, 56223), (1161, 18741), (3483, 6247)]