21743920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{24709}}^1$

素因数の和:24733

約数の個数: 40

約数和(自身を含む): 55152720

約数和(自身を除く): 33408800

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 24709, 49418, 98836, 123545, 197672, 247090, 271799, 395344, 494180, 543598, 988360, 1087196, 1358995, 1976720, 2174392, 2717990, 4348784, 5435980, 10871960, 21743920]

約数ペア:

[(1, 21743920), (2, 10871960), (4, 5435980), (5, 4348784), (8, 2717990), (10, 2174392), (11, 1976720), (16, 1358995), (20, 1087196), (22, 988360), (40, 543598), (44, 494180), (55, 395344), (80, 271799), (88, 247090), (110, 197672), (176, 123545), (220, 98836), (440, 49418), (880, 24709)]