21226287

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{1213}}^1$

素因数の和:1542

約数の個数: 16

約数和(自身を含む): 29912960

約数和(自身を除く): 8686673

約数列:

[1, 3, 19, 57, 307, 921, 1213, 3639, 5833, 17499, 23047, 69141, 372391, 1117173, 7075429, 21226287]

約数ペア:

[(1, 21226287), (3, 7075429), (19, 1117173), (57, 372391), (307, 69141), (921, 23047), (1213, 17499), (3639, 5833)]