21891371037

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{20213639}}^1$

素因数の和:20213680

約数の個数: 12

約数和(自身を含む): 30805587360

約数和(自身を除く): 8914216323

約数列:

[1, 3, 19, 57, 361, 1083, 20213639, 60640917, 384059141, 1152177423, 7297123679, 21891371037]

約数ペア:

[(1, 21891371037), (3, 7297123679), (19, 1152177423), (57, 384059141), (361, 60640917), (1083, 20213639)]