18781938

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6481}}^1$

素因数の和:6519

約数の個数: 48

約数和(自身を含む): 48537216

約数和(自身を除く): 29755278

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 23, 42, 46, 63, 69, 126, 138, 161, 207, 322, 414, 483, 966, 1449, 2898, 6481, 12962, 19443, 38886, 45367, 58329, 90734, 116658, 136101, 149063, 272202, 298126, 408303, 447189, 816606, 894378, 1043441, 1341567, 2086882, 2683134, 3130323, 6260646, 9390969, 18781938]

約数ペア:

[(1, 18781938), (2, 9390969), (3, 6260646), (6, 3130323), (7, 2683134), (9, 2086882), (14, 1341567), (18, 1043441), (21, 894378), (23, 816606), (42, 447189), (46, 408303), (63, 298126), (69, 272202), (126, 149063), (138, 136101), (161, 116658), (207, 90734), (322, 58329), (414, 45367), (483, 38886), (966, 19443), (1449, 12962), (2898, 6481)]