20398908

素因数分解:

$2^2\times 3^1\times {\mathrm{107}}^1\times {\mathrm{15887}}^1$

素因数の和:16001

約数の個数: 24

約数和(自身を含む): 48045312

約数和(自身を除く): 27646404

約数列:

[1, 2, 3, 4, 6, 12, 107, 214, 321, 428, 642, 1284, 15887, 31774, 47661, 63548, 95322, 190644, 1699909, 3399818, 5099727, 6799636, 10199454, 20398908]

約数ペア:

[(1, 20398908), (2, 10199454), (3, 6799636), (4, 5099727), (6, 3399818), (12, 1699909), (107, 190644), (214, 95322), (321, 63548), (428, 47661), (642, 31774), (1284, 15887)]