20542851

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19181}}^1$

素因数の和:19211

約数の個数: 24

約数和(自身を含む): 35908704

約数和(自身を除く): 15365853

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 19181, 57543, 134267, 172629, 326077, 402801, 978231, 1208403, 2282539, 2934693, 6847617, 20542851]

約数ペア:

[(1, 20542851), (3, 6847617), (7, 2934693), (9, 2282539), (17, 1208403), (21, 978231), (51, 402801), (63, 326077), (119, 172629), (153, 134267), (357, 57543), (1071, 19181)]