21695091

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{15289}}^1$

素因数の和:15346

約数の個数: 16

約数和(自身を含む): 32292480

約数和(自身を除く): 10597389

約数列:

[1, 3, 11, 33, 43, 129, 473, 1419, 15289, 45867, 168179, 504537, 657427, 1972281, 7231697, 21695091]

約数ペア:

[(1, 21695091), (3, 7231697), (11, 1972281), (33, 657427), (43, 504537), (129, 168179), (473, 45867), (1419, 15289)]