19196199

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2731}}^1$

素因数の和:2819

約数の個数: 24

約数和(自身を含む): 30685824

約数和(自身を除く): 11489625

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 639, 781, 2343, 2731, 7029, 8193, 24579, 30041, 90123, 193901, 270369, 581703, 1745109, 2132911, 6398733, 19196199]

約数ペア:

[(1, 19196199), (3, 6398733), (9, 2132911), (11, 1745109), (33, 581703), (71, 270369), (99, 193901), (213, 90123), (639, 30041), (781, 24579), (2343, 8193), (2731, 7029)]