21464080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{24391}}^1$

素因数の和:24415

約数の個数: 40

約数和(自身を含む): 54442944

約数和(自身を除く): 32978864

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 24391, 48782, 97564, 121955, 195128, 243910, 268301, 390256, 487820, 536602, 975640, 1073204, 1341505, 1951280, 2146408, 2683010, 4292816, 5366020, 10732040, 21464080]

約数ペア:

[(1, 21464080), (2, 10732040), (4, 5366020), (5, 4292816), (8, 2683010), (10, 2146408), (11, 1951280), (16, 1341505), (20, 1073204), (22, 975640), (40, 536602), (44, 487820), (55, 390256), (80, 268301), (88, 243910), (110, 195128), (176, 121955), (220, 97564), (440, 48782), (880, 24391)]