18912776

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{54979}}^1$

素因数の和:55028

約数の個数: 16

約数和(自身を含む): 36286800

約数和(自身を除く): 17374024

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 54979, 109958, 219916, 439832, 2364097, 4728194, 9456388, 18912776]

約数ペア:

[(1, 18912776), (2, 9456388), (4, 4728194), (8, 2364097), (43, 439832), (86, 219916), (172, 109958), (344, 54979)]