18966549

素因数分解:

$3^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{1409}}^1$

素因数の和:2060

約数の個数: 16

約数和(自身を含む): 28967040

約数和(自身を除く): 10000491

約数列:

[1, 3, 7, 21, 641, 1409, 1923, 4227, 4487, 9863, 13461, 29589, 903169, 2709507, 6322183, 18966549]

約数ペア:

[(1, 18966549), (3, 6322183), (7, 2709507), (21, 903169), (641, 29589), (1409, 13461), (1923, 9863), (4227, 4487)]