21309574

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{74509}}^1$

素因数の和:74535

約数の個数: 16

約数和(自身を含む): 37553040

約数和(自身を除く): 16243466

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 74509, 149018, 819599, 968617, 1639198, 1937234, 10654787, 21309574]

約数ペア:

[(1, 21309574), (2, 10654787), (11, 1937234), (13, 1639198), (22, 968617), (26, 819599), (143, 149018), (286, 74509)]