21383705

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{433}}^1$

素因数の和:545

約数の個数: 32

約数和(自身を含む): 31497984

約数和(自身を除く): 10114279

約数列:

[1, 5, 7, 17, 35, 83, 85, 119, 415, 433, 581, 595, 1411, 2165, 2905, 3031, 7055, 7361, 9877, 15155, 35939, 36805, 49385, 51527, 179695, 251573, 257635, 610963, 1257865, 3054815, 4276741, 21383705]

約数ペア:

[(1, 21383705), (5, 4276741), (7, 3054815), (17, 1257865), (35, 610963), (83, 257635), (85, 251573), (119, 179695), (415, 51527), (433, 49385), (581, 36805), (595, 35939), (1411, 15155), (2165, 9877), (2905, 7361), (3031, 7055)]