18906928

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{27481}}^1$

素因数の和:27532

約数の個数: 20

約数和(自身を含む): 37485448

約数和(自身を除く): 18578520

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 27481, 54962, 109924, 219848, 439696, 1181683, 2363366, 4726732, 9453464, 18906928]

約数ペア:

[(1, 18906928), (2, 9453464), (4, 4726732), (8, 2363366), (16, 1181683), (43, 439696), (86, 219848), (172, 109924), (344, 54962), (688, 27481)]