18722061

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{353}}^1$

素因数の和:513

約数の個数: 24

約数和(自身を含む): 27832896

約数和(自身を除く): 9110835

約数列:

[1, 3, 9, 71, 83, 213, 249, 353, 639, 747, 1059, 3177, 5893, 17679, 25063, 29299, 53037, 75189, 87897, 225567, 263691, 2080229, 6240687, 18722061]

約数ペア:

[(1, 18722061), (3, 6240687), (9, 2080229), (71, 263691), (83, 225567), (213, 87897), (249, 75189), (353, 53037), (639, 29299), (747, 25063), (1059, 17679), (3177, 5893)]