19934901

素因数分解:

$3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{2903}}^1$

素因数の和:3025

約数の個数: 24

約数和(自身を含む): 33221760

約数和(自身を除く): 13286859

約数列:

[1, 3, 7, 9, 21, 63, 109, 327, 763, 981, 2289, 2903, 6867, 8709, 20321, 26127, 60963, 182889, 316427, 949281, 2214989, 2847843, 6644967, 19934901]

約数ペア:

[(1, 19934901), (3, 6644967), (7, 2847843), (9, 2214989), (21, 949281), (63, 316427), (109, 182889), (327, 60963), (763, 26127), (981, 20321), (2289, 8709), (2903, 6867)]