18290559

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{45841}}^1$

素因数の和:45870

約数の個数: 16

約数和(自身を含む): 29338880

約数和(自身を除く): 11048321

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 45841, 137523, 320887, 870979, 962661, 2612937, 6096853, 18290559]

約数ペア:

[(1, 18290559), (3, 6096853), (7, 2612937), (19, 962661), (21, 870979), (57, 320887), (133, 137523), (399, 45841)]