212821491

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{373}}^1\times {\mathrm{4423}}^1$

素因数の和:4842

約数の個数: 16

約数和(自身を含む): 291205376

約数和(自身を除く): 78383885

約数列:

[1, 3, 43, 129, 373, 1119, 4423, 13269, 16039, 48117, 190189, 570567, 1649779, 4949337, 70940497, 212821491]

約数ペア:

[(1, 212821491), (3, 70940497), (43, 4949337), (129, 1649779), (373, 570567), (1119, 190189), (4423, 48117), (13269, 16039)]