21458542

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{11027}}^1$

素因数の和:11175

約数の個数: 16

約数和(自身を含む): 37054080

約数和(自身を除く): 15595538

約数列:

[1, 2, 7, 14, 139, 278, 973, 1946, 11027, 22054, 77189, 154378, 1532753, 3065506, 10729271, 21458542]

約数ペア:

[(1, 21458542), (2, 10729271), (7, 3065506), (14, 1532753), (139, 154378), (278, 77189), (973, 22054), (1946, 11027)]