21732040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{49391}}^1$

素因数の和:49413

約数の個数: 32

約数和(自身を含む): 53343360

約数和(自身を除く): 31611320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 49391, 98782, 197564, 246955, 395128, 493910, 543301, 987820, 1086602, 1975640, 2173204, 2716505, 4346408, 5433010, 10866020, 21732040]

約数ペア:

[(1, 21732040), (2, 10866020), (4, 5433010), (5, 4346408), (8, 2716505), (10, 2173204), (11, 1975640), (20, 1086602), (22, 987820), (40, 543301), (44, 493910), (55, 395128), (88, 246955), (110, 197564), (220, 98782), (440, 49391)]