20615966

素因数分解:

$2^1\times 7^2\times {\mathrm{211}}^1\times {\mathrm{997}}^1$

素因数の和:1224

約数の個数: 24

約数和(自身を含む): 36179496

約数和(自身を除く): 15563530

約数列:

[1, 2, 7, 14, 49, 98, 211, 422, 997, 1477, 1994, 2954, 6979, 10339, 13958, 20678, 48853, 97706, 210367, 420734, 1472569, 2945138, 10307983, 20615966]

約数ペア:

[(1, 20615966), (2, 10307983), (7, 2945138), (14, 1472569), (49, 420734), (98, 210367), (211, 97706), (422, 48853), (997, 20678), (1477, 13958), (1994, 10339), (2954, 6979)]