19984545

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{63443}}^1$

素因数の和:63461

約数の個数: 24

約数和(自身を含む): 39589056

約数和(自身を除く): 19604511

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 63443, 190329, 317215, 444101, 570987, 951645, 1332303, 2220505, 2854935, 3996909, 6661515, 19984545]

約数ペア:

[(1, 19984545), (3, 6661515), (5, 3996909), (7, 2854935), (9, 2220505), (15, 1332303), (21, 951645), (35, 570987), (45, 444101), (63, 317215), (105, 190329), (315, 63443)]