21956396

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71287}}^1$

素因数の和:71309

約数の個数: 24

約数和(自身を含む): 47905536

約数和(自身を除く): 25949140

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 71287, 142574, 285148, 499009, 784157, 998018, 1568314, 1996036, 3136628, 5489099, 10978198, 21956396]

約数ペア:

[(1, 21956396), (2, 10978198), (4, 5489099), (7, 3136628), (11, 1996036), (14, 1568314), (22, 998018), (28, 784157), (44, 499009), (77, 285148), (154, 142574), (308, 71287)]