19812712

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{22721}}^1$

素因数の和:22836

約数の個数: 16

約数和(自身を含む): 37491300

約数和(自身を除く): 17678588

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 22721, 45442, 90884, 181768, 2476589, 4953178, 9906356, 19812712]

約数ペア:

[(1, 19812712), (2, 9906356), (4, 4953178), (8, 2476589), (109, 181768), (218, 90884), (436, 45442), (872, 22721)]