21521319

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{4549}}^1$

素因数の和:4654

約数の個数: 16

約数和(自身を含む): 30576000

約数和(自身を除く): 9054681

約数列:

[1, 3, 19, 57, 83, 249, 1577, 4549, 4731, 13647, 86431, 259293, 377567, 1132701, 7173773, 21521319]

約数ペア:

[(1, 21521319), (3, 7173773), (19, 1132701), (57, 377567), (83, 259293), (249, 86431), (1577, 13647), (4549, 4731)]