19666761

素因数分解:

$3^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1\times {\mathrm{439}}^1$

素因数の和:688

約数の個数: 16

約数和(自身を含む): 26716800

約数和(自身を除く): 7050039

約数列:

[1, 3, 109, 137, 327, 411, 439, 1317, 14933, 44799, 47851, 60143, 143553, 180429, 6555587, 19666761]

約数ペア:

[(1, 19666761), (3, 6555587), (109, 180429), (137, 143553), (327, 60143), (411, 47851), (439, 44799), (1317, 14933)]