21749739

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{22727}}^1$

素因数の和:22770

約数の個数: 16

約数和(自身を含む): 32728320

約数和(自身を除く): 10978581

約数列:

[1, 3, 11, 29, 33, 87, 319, 957, 22727, 68181, 249997, 659083, 749991, 1977249, 7249913, 21749739]

約数ペア:

[(1, 21749739), (3, 7249913), (11, 1977249), (29, 749991), (33, 659083), (87, 249997), (319, 68181), (957, 22727)]