21997239

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{9949}}^1$

素因数の和:10030

約数の個数: 16

約数和(自身を含む): 32476800

約数和(自身を除く): 10479561

約数列:

[1, 3, 11, 33, 67, 201, 737, 2211, 9949, 29847, 109439, 328317, 666583, 1999749, 7332413, 21997239]

約数ペア:

[(1, 21997239), (3, 7332413), (11, 1999749), (33, 666583), (67, 328317), (201, 109439), (737, 29847), (2211, 9949)]