21701267

素因数分解:

$7^3\times {\mathrm{151}}^1\times {\mathrm{419}}^1$

素因数の和:591

約数の個数: 16

約数和(自身を含む): 25536000

約数和(自身を除く): 3834733

約数列:

[1, 7, 49, 151, 343, 419, 1057, 2933, 7399, 20531, 51793, 63269, 143717, 442883, 3100181, 21701267]

約数ペア:

[(1, 21701267), (7, 3100181), (49, 442883), (151, 143717), (343, 63269), (419, 51793), (1057, 20531), (2933, 7399)]