21619642

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{13841}}^1$

素因数の和:13925

約数の個数: 16

約数和(自身を含む): 35878464

約数和(自身を除く): 14258822

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 13841, 27682, 152251, 304502, 982711, 1965422, 10809821, 21619642]

約数ペア:

[(1, 21619642), (2, 10809821), (11, 1965422), (22, 982711), (71, 304502), (142, 152251), (781, 27682), (1562, 13841)]