21180171

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{2417}}^1$

素因数の和:2570

約数の個数: 16

約数和(自身を含む): 29712384

約数和(自身を除く): 8532213

約数列:

[1, 3, 23, 69, 127, 381, 2417, 2921, 7251, 8763, 55591, 166773, 306959, 920877, 7060057, 21180171]

約数ペア:

[(1, 21180171), (3, 7060057), (23, 920877), (69, 306959), (127, 166773), (381, 55591), (2417, 8763), (2921, 7251)]