211345981

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{5309}}^1$

素因数の和:5385

約数の個数: 24

約数和(自身を含む): 271192320

約数和(自身を除く): 59846339

約数列:

[1, 7, 11, 47, 77, 121, 329, 517, 847, 3619, 5309, 5687, 37163, 39809, 58399, 249523, 408793, 642389, 1746661, 2744753, 4496723, 19213271, 30192283, 211345981]

約数ペア:

[(1, 211345981), (7, 30192283), (11, 19213271), (47, 4496723), (77, 2744753), (121, 1746661), (329, 642389), (517, 408793), (847, 249523), (3619, 58399), (5309, 39809), (5687, 37163)]