20816538

素因数分解:

$2^1\times 3^1\times {\mathrm{449}}^1\times {\mathrm{7727}}^1$

素因数の和:8181

約数の個数: 16

約数和(自身を含む): 41731200

約数和(自身を除く): 20914662

約数列:

[1, 2, 3, 6, 449, 898, 1347, 2694, 7727, 15454, 23181, 46362, 3469423, 6938846, 10408269, 20816538]

約数ペア:

[(1, 20816538), (2, 10408269), (3, 6938846), (6, 3469423), (449, 46362), (898, 23181), (1347, 15454), (2694, 7727)]