21071752

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{202613}}^1$

素因数の和:202632

約数の個数: 16

約数和(自身を含む): 42548940

約数和(自身を除く): 21477188

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 202613, 405226, 810452, 1620904, 2633969, 5267938, 10535876, 21071752]

約数ペア:

[(1, 21071752), (2, 10535876), (4, 5267938), (8, 2633969), (13, 1620904), (26, 810452), (52, 405226), (104, 202613)]