20254437

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{16921}}^1$

素因数の和:16953

約数の個数: 24

約数和(自身を含む): 35197760

約数和(自身を除く): 14943323

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 16921, 50763, 118447, 152289, 321499, 355341, 964497, 1066023, 2250493, 2893491, 6751479, 20254437]

約数ペア:

[(1, 20254437), (3, 6751479), (7, 2893491), (9, 2250493), (19, 1066023), (21, 964497), (57, 355341), (63, 321499), (133, 152289), (171, 118447), (399, 50763), (1197, 16921)]