247449279

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1031}}^1\times {\mathrm{1039}}^1$

素因数の和:2091

約数の個数: 32

約数和(自身を含む): 412139520

約数和(自身を除く): 164690241

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 1031, 1039, 3093, 3117, 7217, 7273, 11341, 11429, 21651, 21819, 34023, 34287, 79387, 80003, 238161, 240009, 1071209, 3213627, 7498463, 11783299, 22495389, 35349897, 82483093, 247449279]

約数ペア:

[(1, 247449279), (3, 82483093), (7, 35349897), (11, 22495389), (21, 11783299), (33, 7498463), (77, 3213627), (231, 1071209), (1031, 240009), (1039, 238161), (3093, 80003), (3117, 79387), (7217, 34287), (7273, 34023), (11341, 21819), (11429, 21651)]