18487469

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:138

約数の個数: 48

約数和(自身を含む): 26455296

約数和(自身を除く): 7967827

約数列:

[1, 7, 11, 13, 23, 73, 77, 91, 121, 143, 161, 253, 299, 511, 803, 847, 949, 1001, 1573, 1679, 1771, 2093, 2783, 3289, 5621, 6643, 8833, 10439, 11011, 11753, 18469, 19481, 21827, 23023, 36179, 61831, 73073, 114829, 129283, 152789, 203159, 240097, 253253, 803803, 1422113, 1680679, 2641067, 18487469]

約数ペア:

[(1, 18487469), (7, 2641067), (11, 1680679), (13, 1422113), (23, 803803), (73, 253253), (77, 240097), (91, 203159), (121, 152789), (143, 129283), (161, 114829), (253, 73073), (299, 61831), (511, 36179), (803, 23023), (847, 21827), (949, 19481), (1001, 18469), (1573, 11753), (1679, 11011), (1771, 10439), (2093, 8833), (2783, 6643), (3289, 5621)]