21288146

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{547}}^1$

素因数の和:650

約数の個数: 32

約数和(自身を含む): 36694080

約数和(自身を除く): 15405934

約数列:

[1, 2, 11, 22, 29, 58, 61, 122, 319, 547, 638, 671, 1094, 1342, 1769, 3538, 6017, 12034, 15863, 19459, 31726, 33367, 38918, 66734, 174493, 348986, 367037, 734074, 967643, 1935286, 10644073, 21288146]

約数ペア:

[(1, 21288146), (2, 10644073), (11, 1935286), (22, 967643), (29, 734074), (58, 367037), (61, 348986), (122, 174493), (319, 66734), (547, 38918), (638, 33367), (671, 31726), (1094, 19459), (1342, 15863), (1769, 12034), (3538, 6017)]