19988607

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{1609}}^1$

素因数の和:1754

約数の個数: 16

約数和(自身を含む): 27588960

約数和(自身を除く): 7600353

約数列:

[1, 3, 41, 101, 123, 303, 1609, 4141, 4827, 12423, 65969, 162509, 197907, 487527, 6662869, 19988607]

約数ペア:

[(1, 19988607), (3, 6662869), (41, 487527), (101, 197907), (123, 162509), (303, 65969), (1609, 12423), (4141, 4827)]