21939673

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1\times {\mathrm{557}}^1$

素因数の和:912

約数の個数: 16

約数和(自身を含む): 26676864

約数和(自身を除く): 4737191

約数列:

[1, 7, 17, 119, 331, 557, 2317, 3899, 5627, 9469, 39389, 66283, 184367, 1290569, 3134239, 21939673]

約数ペア:

[(1, 21939673), (7, 3134239), (17, 1290569), (119, 184367), (331, 66283), (557, 39389), (2317, 9469), (3899, 5627)]