21901347

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{2311}}^1$

素因数の和:2342

約数の個数: 28

約数和(自身を含む): 35378224

約数和(自身を除く): 13476877

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 729, 1053, 2311, 3159, 6933, 9477, 20799, 30043, 62397, 90129, 187191, 270387, 561573, 811161, 1684719, 2433483, 7300449, 21901347]

約数ペア:

[(1, 21901347), (3, 7300449), (9, 2433483), (13, 1684719), (27, 811161), (39, 561573), (81, 270387), (117, 187191), (243, 90129), (351, 62397), (729, 30043), (1053, 20799), (2311, 9477), (3159, 6933)]