21102711

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{52889}}^1$

素因数の和:52918

約数の個数: 16

約数和(自身を含む): 33849600

約数和(自身を除く): 12746889

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 52889, 158667, 370223, 1004891, 1110669, 3014673, 7034237, 21102711]

約数ペア:

[(1, 21102711), (3, 7034237), (7, 3014673), (19, 1110669), (21, 1004891), (57, 370223), (133, 158667), (399, 52889)]