20644364

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{30539}}^1$

素因数の和:30569

約数の個数: 18

約数和(自身を含む): 39121740

約数和(自身を除く): 18477376

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 30539, 61078, 122156, 397007, 794014, 1588028, 5161091, 10322182, 20644364]

約数ペア:

[(1, 20644364), (2, 10322182), (4, 5161091), (13, 1588028), (26, 794014), (52, 397007), (169, 122156), (338, 61078), (676, 30539)]