20953894

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47407}}^1$

素因数の和:47439

約数の個数: 16

約数和(自身を含む): 35840448

約数和(自身を除く): 14886554

約数列:

[1, 2, 13, 17, 26, 34, 221, 442, 47407, 94814, 616291, 805919, 1232582, 1611838, 10476947, 20953894]

約数ペア:

[(1, 20953894), (2, 10476947), (13, 1611838), (17, 1232582), (26, 805919), (34, 616291), (221, 94814), (442, 47407)]