80521791

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{201809}}^1$

素因数の和:201838

約数の個数: 16

約数和(自身を含む): 129158400

約数和(自身を除く): 48636609

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 201809, 605427, 1412663, 3834371, 4237989, 11503113, 26840597, 80521791]

約数ペア:

[(1, 80521791), (3, 26840597), (7, 11503113), (19, 4237989), (21, 3834371), (57, 1412663), (133, 605427), (399, 201809)]