218699688081

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{548119519}}^1$

素因数の和:548119548

約数の個数: 16

約数和(自身を含む): 350796492800

約数和(自身を除く): 132096804719

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 548119519, 1644358557, 3836836633, 10414270861, 11510509899, 31242812583, 72899896027, 218699688081]

約数ペア:

[(1, 218699688081), (3, 72899896027), (7, 31242812583), (19, 11510509899), (21, 10414270861), (57, 3836836633), (133, 1644358557), (399, 548119519)]