21435964

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{2473}}^1$

素因数の和:2685

約数の個数: 24

約数和(自身を含む): 41147568

約数和(自身を除く): 19711604

約数列:

[1, 2, 4, 11, 22, 44, 197, 394, 788, 2167, 2473, 4334, 4946, 8668, 9892, 27203, 54406, 108812, 487181, 974362, 1948724, 5358991, 10717982, 21435964]

約数ペア:

[(1, 21435964), (2, 10717982), (4, 5358991), (11, 1948724), (22, 974362), (44, 487181), (197, 108812), (394, 54406), (788, 27203), (2167, 9892), (2473, 8668), (4334, 4946)]