20196477

素因数分解:

$3^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{1117}}^1$

素因数の和:1178

約数の個数: 36

約数和(自身を含む): 34794396

約数和(自身を除く): 14597919

約数列:

[1, 3, 7, 9, 21, 41, 49, 63, 123, 147, 287, 369, 441, 861, 1117, 2009, 2583, 3351, 6027, 7819, 10053, 18081, 23457, 45797, 54733, 70371, 137391, 164199, 320579, 412173, 492597, 961737, 2244053, 2885211, 6732159, 20196477]

約数ペア:

[(1, 20196477), (3, 6732159), (7, 2885211), (9, 2244053), (21, 961737), (41, 492597), (49, 412173), (63, 320579), (123, 164199), (147, 137391), (287, 70371), (369, 54733), (441, 45797), (861, 23457), (1117, 18081), (2009, 10053), (2583, 7819), (3351, 6027)]