20486606

素因数分解:

$2^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:249

約数の個数: 48

約数和(自身を含む): 38167200

約数和(自身を除く): 17680594

約数列:

[1, 2, 7, 14, 23, 46, 49, 61, 98, 122, 149, 161, 298, 322, 427, 854, 1043, 1127, 1403, 2086, 2254, 2806, 2989, 3427, 5978, 6854, 7301, 9089, 9821, 14602, 18178, 19642, 23989, 47978, 63623, 68747, 127246, 137494, 167923, 209047, 335846, 418094, 445361, 890722, 1463329, 2926658, 10243303, 20486606]

約数ペア:

[(1, 20486606), (2, 10243303), (7, 2926658), (14, 1463329), (23, 890722), (46, 445361), (49, 418094), (61, 335846), (98, 209047), (122, 167923), (149, 137494), (161, 127246), (298, 68747), (322, 63623), (427, 47978), (854, 23989), (1043, 19642), (1127, 18178), (1403, 14602), (2086, 9821), (2254, 9089), (2806, 7301), (2989, 6854), (3427, 5978)]