20128341

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{239}}^1\times {\mathrm{419}}^1$

素因数の和:728

約数の個数: 16

約数和(自身を含む): 27417600

約数和(自身を除く): 7289259

約数列:

[1, 3, 67, 201, 239, 419, 717, 1257, 16013, 28073, 48039, 84219, 100141, 300423, 6709447, 20128341]

約数ペア:

[(1, 20128341), (3, 6709447), (67, 300423), (201, 100141), (239, 84219), (419, 48039), (717, 28073), (1257, 16013)]