20578983

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{2381}}^1$

素因数の和:2494

約数の個数: 16

約数和(自身を含む): 28507776

約数和(自身を除く): 7928793

約数列:

[1, 3, 43, 67, 129, 201, 2381, 2881, 7143, 8643, 102383, 159527, 307149, 478581, 6859661, 20578983]

約数ペア:

[(1, 20578983), (3, 6859661), (43, 478581), (67, 307149), (129, 159527), (201, 102383), (2381, 8643), (2881, 7143)]