19974789

素因数分解:

$3^3\times {\mathrm{179}}^1\times {\mathrm{4133}}^1$

素因数の和:4321

約数の個数: 16

約数和(自身を含む): 29764800

約数和(自身を除く): 9790011

約数列:

[1, 3, 9, 27, 179, 537, 1611, 4133, 4833, 12399, 37197, 111591, 739807, 2219421, 6658263, 19974789]

約数ペア:

[(1, 19974789), (3, 6658263), (9, 2219421), (27, 739807), (179, 111591), (537, 37197), (1611, 12399), (4133, 4833)]