19217313

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{181}}^1\times {\mathrm{251}}^1$

素因数の和:485

約数の個数: 24

約数和(自身を含む): 28619136

約数和(自身を除く): 9401823

約数列:

[1, 3, 9, 47, 141, 181, 251, 423, 543, 753, 1629, 2259, 8507, 11797, 25521, 35391, 45431, 76563, 106173, 136293, 408879, 2135257, 6405771, 19217313]

約数ペア:

[(1, 19217313), (3, 6405771), (9, 2135257), (47, 408879), (141, 136293), (181, 106173), (251, 76563), (423, 45431), (543, 35391), (753, 25521), (1629, 11797), (2259, 8507)]