21157059

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1367}}^1$

素因数の和:1455

約数の個数: 32

約数和(自身を含む): 35721216

約数和(自身を除く): 14564157

約数列:

[1, 3, 7, 11, 21, 33, 67, 77, 201, 231, 469, 737, 1367, 1407, 2211, 4101, 5159, 9569, 15037, 15477, 28707, 45111, 91589, 105259, 274767, 315777, 641123, 1007479, 1923369, 3022437, 7052353, 21157059]

約数ペア:

[(1, 21157059), (3, 7052353), (7, 3022437), (11, 1923369), (21, 1007479), (33, 641123), (67, 315777), (77, 274767), (201, 105259), (231, 91589), (469, 45111), (737, 28707), (1367, 15477), (1407, 15037), (2211, 9569), (4101, 5159)]