18999669

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{157}}^1$

素因数の和:309

約数の個数: 32

約数和(自身を含む): 28667520

約数和(自身を除く): 9667851

約数列:

[1, 3, 13, 29, 39, 87, 107, 157, 321, 377, 471, 1131, 1391, 2041, 3103, 4173, 4553, 6123, 9309, 13659, 16799, 40339, 50397, 59189, 121017, 177567, 218387, 487171, 655161, 1461513, 6333223, 18999669]

約数ペア:

[(1, 18999669), (3, 6333223), (13, 1461513), (29, 655161), (39, 487171), (87, 218387), (107, 177567), (157, 121017), (321, 59189), (377, 50397), (471, 40339), (1131, 16799), (1391, 13659), (2041, 9309), (3103, 6123), (4173, 4553)]