137681509

素因数分解:

$7^1\times {\mathrm{31}}^2\times {\mathrm{97}}^1\times {\mathrm{211}}^1$

素因数の和:377

約数の個数: 24

約数和(自身を含む): 165044544

約数和(自身を除く): 27363035

約数列:

[1, 7, 31, 97, 211, 217, 679, 961, 1477, 3007, 6541, 6727, 20467, 21049, 45787, 93217, 143269, 202771, 634477, 652519, 1419397, 4441339, 19668787, 137681509]

約数ペア:

[(1, 137681509), (7, 19668787), (31, 4441339), (97, 1419397), (211, 652519), (217, 634477), (679, 202771), (961, 143269), (1477, 93217), (3007, 45787), (6541, 21049), (6727, 20467)]