21716486

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{13903}}^1$

素因数の和:13987

約数の個数: 16

約数和(自身を含む): 36039168

約数和(自身を除く): 14322682

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 13903, 27806, 152933, 305866, 987113, 1974226, 10858243, 21716486]

約数ペア:

[(1, 21716486), (2, 10858243), (11, 1974226), (22, 987113), (71, 305866), (142, 152933), (781, 27806), (1562, 13903)]