16663437

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{13921}}^1$

素因数の和:13953

約数の個数: 24

約数和(自身を含む): 28957760

約数和(自身を除く): 12294323

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 13921, 41763, 97447, 125289, 264499, 292341, 793497, 877023, 1851493, 2380491, 5554479, 16663437]

約数ペア:

[(1, 16663437), (3, 5554479), (7, 2380491), (9, 1851493), (19, 877023), (21, 793497), (57, 292341), (63, 264499), (133, 125289), (171, 97447), (399, 41763), (1197, 13921)]