20945032

素因数分解:

$2^3\times {\mathrm{401}}^1\times {\mathrm{6529}}^1$

素因数の和:6936

約数の個数: 16

約数和(自身を含む): 39375900

約数和(自身を除く): 18430868

約数列:

[1, 2, 4, 8, 401, 802, 1604, 3208, 6529, 13058, 26116, 52232, 2618129, 5236258, 10472516, 20945032]

約数ペア:

[(1, 20945032), (2, 10472516), (4, 5236258), (8, 2618129), (401, 52232), (802, 26116), (1604, 13058), (3208, 6529)]