20971916

素因数分解:

$2^2\times 7^1\times {\mathrm{631}}^1\times {\mathrm{1187}}^1$

素因数の和:1829

約数の個数: 24

約数和(自身を含む): 42045696

約数和(自身を除く): 21073780

約数列:

[1, 2, 4, 7, 14, 28, 631, 1187, 1262, 2374, 2524, 4417, 4748, 8309, 8834, 16618, 17668, 33236, 748997, 1497994, 2995988, 5242979, 10485958, 20971916]

約数ペア:

[(1, 20971916), (2, 10485958), (4, 5242979), (7, 2995988), (14, 1497994), (28, 748997), (631, 33236), (1187, 17668), (1262, 16618), (2374, 8834), (2524, 8309), (4417, 4748)]