21681483

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{743}}^1$

素因数の和:954

約数の個数: 16

約数和(自身を含む): 29569536

約数和(自身を除く): 7888053

約数列:

[1, 3, 71, 137, 213, 411, 743, 2229, 9727, 29181, 52753, 101791, 158259, 305373, 7227161, 21681483]

約数ペア:

[(1, 21681483), (3, 7227161), (71, 305373), (137, 158259), (213, 101791), (411, 52753), (743, 29181), (2229, 9727)]