20971902

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{71333}}^1$

素因数の和:71352

約数の個数: 24

約数和(自身を含む): 48792456

約数和(自身を除く): 27820554

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 71333, 142666, 213999, 427998, 499331, 998662, 1497993, 2995986, 3495317, 6990634, 10485951, 20971902]

約数ペア:

[(1, 20971902), (2, 10485951), (3, 6990634), (6, 3495317), (7, 2995986), (14, 1497993), (21, 998662), (42, 499331), (49, 427998), (98, 213999), (147, 142666), (294, 71333)]