1640802947

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{1123}}^1\times {\mathrm{4441}}^1$

素因数の和:5618

約数の個数: 16

約数和(自身を含む): 1917238272

約数和(自身を除く): 276435325

約数列:

[1, 7, 47, 329, 1123, 4441, 7861, 31087, 52781, 208727, 369467, 1461089, 4987243, 34910701, 234400421, 1640802947]

約数ペア:

[(1, 1640802947), (7, 234400421), (47, 34910701), (329, 4987243), (1123, 1461089), (4441, 369467), (7861, 208727), (31087, 52781)]