21361426989

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53537411}}^1$

素因数の和:53537440

約数の個数: 16

約数和(自身を含む): 34263943680

約数和(自身を除く): 12902516691

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 53537411, 160612233, 374761877, 1017210809, 1124285631, 3051632427, 7120475663, 21361426989]

約数ペア:

[(1, 21361426989), (3, 7120475663), (7, 3051632427), (19, 1124285631), (21, 1017210809), (57, 374761877), (133, 160612233), (399, 53537411)]