21912327

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{1381}}^1$

素因数の和:1471

約数の個数: 24

約数和(自身を含む): 33201168

約数和(自身を除く): 11288841

約数列:

[1, 3, 9, 41, 43, 123, 129, 369, 387, 1381, 1763, 4143, 5289, 12429, 15867, 56621, 59383, 169863, 178149, 509589, 534447, 2434703, 7304109, 21912327]

約数ペア:

[(1, 21912327), (3, 7304109), (9, 2434703), (41, 534447), (43, 509589), (123, 178149), (129, 169863), (369, 59383), (387, 56621), (1381, 15867), (1763, 12429), (4143, 5289)]