21971124

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{87187}}^1$

素因数の和:87204

約数の個数: 36

約数和(自身を含む): 63472864

約数和(自身を除く): 41501740

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 87187, 174374, 261561, 348748, 523122, 610309, 784683, 1046244, 1220618, 1569366, 1830927, 2441236, 3138732, 3661854, 5492781, 7323708, 10985562, 21971124]

約数ペア:

[(1, 21971124), (2, 10985562), (3, 7323708), (4, 5492781), (6, 3661854), (7, 3138732), (9, 2441236), (12, 1830927), (14, 1569366), (18, 1220618), (21, 1046244), (28, 784683), (36, 610309), (42, 523122), (63, 348748), (84, 261561), (126, 174374), (252, 87187)]