80921701

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{397}}^1\times {\mathrm{787}}^1$

素因数の和:1228

約数の個数: 16

約数和(自身を含む): 95341696

約数和(自身を除く): 14419995

約数列:

[1, 7, 37, 259, 397, 787, 2779, 5509, 14689, 29119, 102823, 203833, 312439, 2187073, 11560243, 80921701]

約数ペア:

[(1, 80921701), (7, 11560243), (37, 2187073), (259, 312439), (397, 203833), (787, 102823), (2779, 29119), (5509, 14689)]