21686800

素因数分解:

$2^4\times 5^2\times {\mathrm{54217}}^1$

素因数の和:54235

約数の個数: 30

約数和(自身を含む): 52103498

約数和(自身を除く): 30416698

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 54217, 108434, 216868, 271085, 433736, 542170, 867472, 1084340, 1355425, 2168680, 2710850, 4337360, 5421700, 10843400, 21686800]

約数ペア:

[(1, 21686800), (2, 10843400), (4, 5421700), (5, 4337360), (8, 2710850), (10, 2168680), (16, 1355425), (20, 1084340), (25, 867472), (40, 542170), (50, 433736), (80, 271085), (100, 216868), (200, 108434), (400, 54217)]