20997368

素因数分解:

$2^3\times 7^1\times {\mathrm{374953}}^1$

素因数の和:374966

約数の個数: 16

約数和(自身を含む): 44994480

約数和(自身を除く): 23997112

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 374953, 749906, 1499812, 2624671, 2999624, 5249342, 10498684, 20997368]

約数ペア:

[(1, 20997368), (2, 10498684), (4, 5249342), (7, 2999624), (8, 2624671), (14, 1499812), (28, 749906), (56, 374953)]