6638891

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1187}}^1$

素因数の和:1258

約数の個数: 16

約数和(自身を含む): 8211456

約数和(自身を除く): 1572565

約数列:

[1, 7, 17, 47, 119, 329, 799, 1187, 5593, 8309, 20179, 55789, 141253, 390523, 948413, 6638891]

約数ペア:

[(1, 6638891), (7, 948413), (17, 390523), (47, 141253), (119, 55789), (329, 20179), (799, 8309), (1187, 5593)]