21043600

素因数分解:

$2^4\times 5^2\times {\mathrm{52609}}^1$

素因数の和:52627

約数の個数: 30

約数和(自身を含む): 50558210

約数和(自身を除く): 29514610

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 52609, 105218, 210436, 263045, 420872, 526090, 841744, 1052180, 1315225, 2104360, 2630450, 4208720, 5260900, 10521800, 21043600]

約数ペア:

[(1, 21043600), (2, 10521800), (4, 5260900), (5, 4208720), (8, 2630450), (10, 2104360), (16, 1315225), (20, 1052180), (25, 841744), (40, 526090), (50, 420872), (80, 263045), (100, 210436), (200, 105218), (400, 52609)]