21001888

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{15263}}^1$

素因数の和:15316

約数の個数: 24

約数和(自身を含む): 42311808

約数和(自身を除く): 21309920

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 172, 344, 688, 1376, 15263, 30526, 61052, 122104, 244208, 488416, 656309, 1312618, 2625236, 5250472, 10500944, 21001888]

約数ペア:

[(1, 21001888), (2, 10500944), (4, 5250472), (8, 2625236), (16, 1312618), (32, 656309), (43, 488416), (86, 244208), (172, 122104), (344, 61052), (688, 30526), (1376, 15263)]