16020819

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{4931}}^1$

素因数の和:4975

約数の個数: 18

約数和(自身を含む): 24428196

約数和(自身を除く): 8407377

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 4931, 14793, 44379, 93689, 281067, 843201, 1780091, 5340273, 16020819]

約数ペア:

[(1, 16020819), (3, 5340273), (9, 1780091), (19, 843201), (57, 281067), (171, 93689), (361, 44379), (1083, 14793), (3249, 4931)]