20509904

素因数分解:

$2^4\times {\mathrm{227}}^1\times {\mathrm{5647}}^1$

素因数の和:5882

約数の個数: 20

約数和(自身を含む): 39920064

約数和(自身を除く): 19410160

約数列:

[1, 2, 4, 8, 16, 227, 454, 908, 1816, 3632, 5647, 11294, 22588, 45176, 90352, 1281869, 2563738, 5127476, 10254952, 20509904]

約数ペア:

[(1, 20509904), (2, 10254952), (4, 5127476), (8, 2563738), (16, 1281869), (227, 90352), (454, 45176), (908, 22588), (1816, 11294), (3632, 5647)]