19181547

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{311}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 35043840

約数和(自身を除く): 15862293

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 89, 99, 231, 267, 311, 623, 693, 801, 933, 979, 1869, 2177, 2799, 2937, 3421, 5607, 6531, 6853, 8811, 10263, 19593, 20559, 23947, 27679, 30789, 61677, 71841, 83037, 193753, 215523, 249111, 304469, 581259, 913407, 1743777, 2131283, 2740221, 6393849, 19181547]

約数ペア:

[(1, 19181547), (3, 6393849), (7, 2740221), (9, 2131283), (11, 1743777), (21, 913407), (33, 581259), (63, 304469), (77, 249111), (89, 215523), (99, 193753), (231, 83037), (267, 71841), (311, 61677), (623, 30789), (693, 27679), (801, 23947), (933, 20559), (979, 19593), (1869, 10263), (2177, 8811), (2799, 6853), (2937, 6531), (3421, 5607)]