21921818

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{317}}^1\times {\mathrm{487}}^1$

素因数の和:877

約数の個数: 16

約数和(自身を含む): 33519744

約数和(自身を除く): 11597926

約数列:

[1, 2, 71, 142, 317, 487, 634, 974, 22507, 34577, 45014, 69154, 154379, 308758, 10960909, 21921818]

約数ペア:

[(1, 21921818), (2, 10960909), (71, 308758), (142, 154379), (317, 69154), (487, 45014), (634, 34577), (974, 22507)]