12638913

素因数分解:

$3^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{677}}^1$

素因数の和:821

約数の個数: 24

約数和(自身を含む): 19786752

約数和(自身を除く): 7147839

約数列:

[1, 3, 7, 21, 49, 127, 147, 381, 677, 889, 2031, 2667, 4739, 6223, 14217, 18669, 33173, 85979, 99519, 257937, 601853, 1805559, 4212971, 12638913]

約数ペア:

[(1, 12638913), (3, 4212971), (7, 1805559), (21, 601853), (49, 257937), (127, 99519), (147, 85979), (381, 33173), (677, 18669), (889, 14217), (2031, 6223), (2667, 4739)]