19873431

素因数分解:

$3^4\times {\mathrm{107}}^1\times {\mathrm{2293}}^1$

素因数の和:2412

約数の個数: 20

約数和(自身を含む): 29977992

約数和(自身を除く): 10104561

約数列:

[1, 3, 9, 27, 81, 107, 321, 963, 2293, 2889, 6879, 8667, 20637, 61911, 185733, 245351, 736053, 2208159, 6624477, 19873431]

約数ペア:

[(1, 19873431), (3, 6624477), (9, 2208159), (27, 736053), (81, 245351), (107, 185733), (321, 61911), (963, 20637), (2293, 8667), (2889, 6879)]