19745187

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{12211}}^1$

素因数の和:12239

約数の個数: 24

約数和(自身を含む): 33412032

約数和(自身を除く): 13666845

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 12211, 36633, 85477, 134321, 256431, 402963, 598339, 940247, 1795017, 2820741, 6581729, 19745187]

約数ペア:

[(1, 19745187), (3, 6581729), (7, 2820741), (11, 1795017), (21, 940247), (33, 598339), (49, 402963), (77, 256431), (147, 134321), (231, 85477), (539, 36633), (1617, 12211)]