21149752

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{203363}}^1$

素因数の和:203382

約数の個数: 16

約数和(自身を含む): 42706440

約数和(自身を除く): 21556688

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 203363, 406726, 813452, 1626904, 2643719, 5287438, 10574876, 21149752]

約数ペア:

[(1, 21149752), (2, 10574876), (4, 5287438), (8, 2643719), (13, 1626904), (26, 813452), (52, 406726), (104, 203363)]