20993168

素因数分解:

$2^4\times 7^2\times {\mathrm{26777}}^1$

素因数の和:26799

約数の個数: 30

約数和(自身を含む): 47316726

約数和(自身を除く): 26323558

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 26777, 53554, 107108, 187439, 214216, 374878, 428432, 749756, 1312073, 1499512, 2624146, 2999024, 5248292, 10496584, 20993168]

約数ペア:

[(1, 20993168), (2, 10496584), (4, 5248292), (7, 2999024), (8, 2624146), (14, 1499512), (16, 1312073), (28, 749756), (49, 428432), (56, 374878), (98, 214216), (112, 187439), (196, 107108), (392, 53554), (784, 26777)]