20888336

素因数分解:

$2^4\times 7^1\times {\mathrm{421}}^1\times {\mathrm{443}}^1$

素因数の和:879

約数の個数: 40

約数和(自身を含む): 46467264

約数和(自身を除く): 25578928

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 421, 443, 842, 886, 1684, 1772, 2947, 3101, 3368, 3544, 5894, 6202, 6736, 7088, 11788, 12404, 23576, 24808, 47152, 49616, 186503, 373006, 746012, 1305521, 1492024, 2611042, 2984048, 5222084, 10444168, 20888336]

約数ペア:

[(1, 20888336), (2, 10444168), (4, 5222084), (7, 2984048), (8, 2611042), (14, 1492024), (16, 1305521), (28, 746012), (56, 373006), (112, 186503), (421, 49616), (443, 47152), (842, 24808), (886, 23576), (1684, 12404), (1772, 11788), (2947, 7088), (3101, 6736), (3368, 6202), (3544, 5894)]