21589263

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{503}}^1$

素因数の和:779

約数の個数: 24

約数和(自身を含む): 33022080

約数和(自身を除く): 11432817

約数列:

[1, 3, 9, 19, 57, 171, 251, 503, 753, 1509, 2259, 4527, 4769, 9557, 14307, 28671, 42921, 86013, 126253, 378759, 1136277, 2398807, 7196421, 21589263]

約数ペア:

[(1, 21589263), (3, 7196421), (9, 2398807), (19, 1136277), (57, 378759), (171, 126253), (251, 86013), (503, 42921), (753, 28671), (1509, 14307), (2259, 9557), (4527, 4769)]