18867988

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{607}}^1$

素因数の和:1039

約数の個数: 24

約数和(自身を含む): 34899200

約数和(自身を除く): 16031212

約数列:

[1, 2, 4, 19, 38, 76, 409, 607, 818, 1214, 1636, 2428, 7771, 11533, 15542, 23066, 31084, 46132, 248263, 496526, 993052, 4716997, 9433994, 18867988]

約数ペア:

[(1, 18867988), (2, 9433994), (4, 4716997), (19, 993052), (38, 496526), (76, 248263), (409, 46132), (607, 31084), (818, 23066), (1214, 15542), (1636, 11533), (2428, 7771)]