210816963

素因数分解:

$3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{6733}}^1$

素因数の和:6824

約数の個数: 36

約数和(自身を含む): 359272368

約数和(自身を除く): 148455405

約数列:

[1, 3, 7, 9, 21, 49, 63, 71, 147, 213, 441, 497, 639, 1491, 3479, 4473, 6733, 10437, 20199, 31311, 47131, 60597, 141393, 329917, 424179, 478043, 989751, 1434129, 2969253, 3346301, 4302387, 10038903, 23424107, 30116709, 70272321, 210816963]

約数ペア:

[(1, 210816963), (3, 70272321), (7, 30116709), (9, 23424107), (21, 10038903), (49, 4302387), (63, 3346301), (71, 2969253), (147, 1434129), (213, 989751), (441, 478043), (497, 424179), (639, 329917), (1491, 141393), (3479, 60597), (4473, 47131), (6733, 31311), (10437, 20199)]