18308913

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{45887}}^1$

素因数の和:45916

約数の個数: 16

約数和(自身を含む): 29368320

約数和(自身を除く): 11059407

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 45887, 137661, 321209, 871853, 963627, 2615559, 6102971, 18308913]

約数ペア:

[(1, 18308913), (3, 6102971), (7, 2615559), (19, 963627), (21, 871853), (57, 321209), (133, 137661), (399, 45887)]