20974486

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{21803}}^1$

素因数の和:21855

約数の個数: 16

約数和(自身を含む): 34799184

約数和(自身を除く): 13824698

約数列:

[1, 2, 13, 26, 37, 74, 481, 962, 21803, 43606, 283439, 566878, 806711, 1613422, 10487243, 20974486]

約数ペア:

[(1, 20974486), (2, 10487243), (13, 1613422), (26, 806711), (37, 566878), (74, 283439), (481, 43606), (962, 21803)]