21837564

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{193}}^1\times {\mathrm{449}}^1$

素因数の和:659

約数の個数: 72

約数和(自身を含む): 63554400

約数和(自身を除く): 41716836

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 193, 252, 386, 449, 579, 772, 898, 1158, 1347, 1351, 1737, 1796, 2316, 2694, 2702, 3143, 3474, 4041, 4053, 5388, 5404, 6286, 6948, 8082, 8106, 9429, 12159, 12572, 16164, 16212, 18858, 24318, 28287, 37716, 48636, 56574, 86657, 113148, 173314, 259971, 346628, 519942, 606599, 779913, 1039884, 1213198, 1559826, 1819797, 2426396, 3119652, 3639594, 5459391, 7279188, 10918782, 21837564]

約数ペア:

[(1, 21837564), (2, 10918782), (3, 7279188), (4, 5459391), (6, 3639594), (7, 3119652), (9, 2426396), (12, 1819797), (14, 1559826), (18, 1213198), (21, 1039884), (28, 779913), (36, 606599), (42, 519942), (63, 346628), (84, 259971), (126, 173314), (193, 113148), (252, 86657), (386, 56574), (449, 48636), (579, 37716), (772, 28287), (898, 24318), (1158, 18858), (1347, 16212), (1351, 16164), (1737, 12572), (1796, 12159), (2316, 9429), (2694, 8106), (2702, 8082), (3143, 6948), (3474, 6286), (4041, 5404), (4053, 5388)]