27988989

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{16871}}^1$

素因数の和:16960

約数の個数: 16

約数和(自身を含む): 43192320

約数和(自身を除く): 15203331

約数列:

[1, 3, 7, 21, 79, 237, 553, 1659, 16871, 50613, 118097, 354291, 1332809, 3998427, 9329663, 27988989]

約数ペア:

[(1, 27988989), (3, 9329663), (7, 3998427), (21, 1332809), (79, 354291), (237, 118097), (553, 50613), (1659, 16871)]