21034957

素因数分解:

${\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{503}}^1$

素因数の和:624

約数の個数: 16

約数和(自身を含む): 23224320

約数和(自身を除く): 2189363

約数列:

[1, 19, 31, 71, 503, 589, 1349, 2201, 9557, 15593, 35713, 41819, 296267, 678547, 1107103, 21034957]

約数ペア:

[(1, 21034957), (19, 1107103), (31, 678547), (71, 296267), (503, 41819), (589, 35713), (1349, 15593), (2201, 9557)]