20890131

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{2417}}^1$

素因数の和:2530

約数の個数: 16

約数和(自身を含む): 28938624

約数和(自身を除く): 8048493

約数列:

[1, 3, 43, 67, 129, 201, 2417, 2881, 7251, 8643, 103931, 161939, 311793, 485817, 6963377, 20890131]

約数ペア:

[(1, 20890131), (3, 6963377), (43, 485817), (67, 311793), (129, 161939), (201, 103931), (2417, 8643), (2881, 7251)]