21040376

素因数分解:

$2^3\times 7^1\times {\mathrm{179}}^1\times {\mathrm{2099}}^1$

素因数の和:2291

約数の個数: 32

約数和(自身を含む): 45360000

約数和(自身を除く): 24319624

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 179, 358, 716, 1253, 1432, 2099, 2506, 4198, 5012, 8396, 10024, 14693, 16792, 29386, 58772, 117544, 375721, 751442, 1502884, 2630047, 3005768, 5260094, 10520188, 21040376]

約数ペア:

[(1, 21040376), (2, 10520188), (4, 5260094), (7, 3005768), (8, 2630047), (14, 1502884), (28, 751442), (56, 375721), (179, 117544), (358, 58772), (716, 29386), (1253, 16792), (1432, 14693), (2099, 10024), (2506, 8396), (4198, 5012)]