21155409

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{2203}}^1$

素因数の和:2317

約数の個数: 24

約数和(自身を含む): 33694752

約数和(自身を除く): 12539343

約数列:

[1, 3, 9, 11, 33, 97, 99, 291, 873, 1067, 2203, 3201, 6609, 9603, 19827, 24233, 72699, 213691, 218097, 641073, 1923219, 2350601, 7051803, 21155409]

約数ペア:

[(1, 21155409), (3, 7051803), (9, 2350601), (11, 1923219), (33, 641073), (97, 218097), (99, 213691), (291, 72699), (873, 24233), (1067, 19827), (2203, 9603), (3201, 6609)]