21483728

素因数分解:

$2^4\times 7^1\times {\mathrm{433}}^1\times {\mathrm{443}}^1$

素因数の和:891

約数の個数: 40

約数和(自身を含む): 47788608

約数和(自身を除く): 26304880

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 433, 443, 866, 886, 1732, 1772, 3031, 3101, 3464, 3544, 6062, 6202, 6928, 7088, 12124, 12404, 24248, 24808, 48496, 49616, 191819, 383638, 767276, 1342733, 1534552, 2685466, 3069104, 5370932, 10741864, 21483728]

約数ペア:

[(1, 21483728), (2, 10741864), (4, 5370932), (7, 3069104), (8, 2685466), (14, 1534552), (16, 1342733), (28, 767276), (56, 383638), (112, 191819), (433, 49616), (443, 48496), (866, 24808), (886, 24248), (1732, 12404), (1772, 12124), (3031, 7088), (3101, 6928), (3464, 6202), (3544, 6062)]