21262630

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{19507}}^1$

素因数の和:19623

約数の個数: 16

約数和(自身を含む): 38625840

約数和(自身を除く): 17363210

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 19507, 39014, 97535, 195070, 2126263, 4252526, 10631315, 21262630]

約数ペア:

[(1, 21262630), (2, 10631315), (5, 4252526), (10, 2126263), (109, 195070), (218, 97535), (545, 39014), (1090, 19507)]