21985953

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{349}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 33868800

約数和(自身を除く): 11882847

約数列:

[1, 3, 11, 23, 33, 69, 83, 249, 253, 349, 759, 913, 1047, 1909, 2739, 3839, 5727, 8027, 11517, 20999, 24081, 28967, 62997, 86901, 88297, 264891, 318637, 666241, 955911, 1998723, 7328651, 21985953]

約数ペア:

[(1, 21985953), (3, 7328651), (11, 1998723), (23, 955911), (33, 666241), (69, 318637), (83, 264891), (249, 88297), (253, 86901), (349, 62997), (759, 28967), (913, 24081), (1047, 20999), (1909, 11517), (2739, 8027), (3839, 5727)]