21083600

素因数分解:

$2^4\times 5^2\times {\mathrm{52709}}^1$

素因数の和:52727

約数の個数: 30

約数和(自身を含む): 50654310

約数和(自身を除く): 29570710

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 52709, 105418, 210836, 263545, 421672, 527090, 843344, 1054180, 1317725, 2108360, 2635450, 4216720, 5270900, 10541800, 21083600]

約数ペア:

[(1, 21083600), (2, 10541800), (4, 5270900), (5, 4216720), (8, 2635450), (10, 2108360), (16, 1317725), (20, 1054180), (25, 843344), (40, 527090), (50, 421672), (80, 263545), (100, 210836), (200, 105418), (400, 52709)]