19809969

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{5417}}^1$

素因数の和:5496

約数の個数: 16

約数和(自身を含む): 28086912

約数和(自身を除く): 8276943

約数列:

[1, 3, 23, 53, 69, 159, 1219, 3657, 5417, 16251, 124591, 287101, 373773, 861303, 6603323, 19809969]

約数ペア:

[(1, 19809969), (3, 6603323), (23, 861303), (53, 373773), (69, 287101), (159, 124591), (1219, 16251), (3657, 5417)]