21209054

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{13613}}^1$

素因数の和:13675

約数の個数: 16

約数和(自身を含む): 34307280

約数和(自身を除く): 13098226

約数列:

[1, 2, 19, 38, 41, 82, 779, 1558, 13613, 27226, 258647, 517294, 558133, 1116266, 10604527, 21209054]

約数ペア:

[(1, 21209054), (2, 10604527), (19, 1116266), (38, 558133), (41, 517294), (82, 258647), (779, 27226), (1558, 13613)]