21789684

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{86467}}^1$

素因数の和:86484

約数の個数: 36

約数和(自身を含む): 62948704

約数和(自身を除く): 41159020

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 86467, 172934, 259401, 345868, 518802, 605269, 778203, 1037604, 1210538, 1556406, 1815807, 2421076, 3112812, 3631614, 5447421, 7263228, 10894842, 21789684]

約数ペア:

[(1, 21789684), (2, 10894842), (3, 7263228), (4, 5447421), (6, 3631614), (7, 3112812), (9, 2421076), (12, 1815807), (14, 1556406), (18, 1210538), (21, 1037604), (28, 778203), (36, 605269), (42, 518802), (63, 345868), (84, 259401), (126, 172934), (252, 86467)]