128839137

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{2339}}^1$

素因数の和:2453

約数の個数: 32

約数和(自身を含む): 204272640

約数和(自身を除く): 75433503

約数列:

[1, 3, 7, 21, 43, 61, 129, 183, 301, 427, 903, 1281, 2339, 2623, 7017, 7869, 16373, 18361, 49119, 55083, 100577, 142679, 301731, 428037, 704039, 998753, 2112117, 2996259, 6135197, 18405591, 42946379, 128839137]

約数ペア:

[(1, 128839137), (3, 42946379), (7, 18405591), (21, 6135197), (43, 2996259), (61, 2112117), (129, 998753), (183, 704039), (301, 428037), (427, 301731), (903, 142679), (1281, 100577), (2339, 55083), (2623, 49119), (7017, 18361), (7869, 16373)]