206970981

素因数分解:

$3^1\times 7^1\times {\mathrm{103}}^2\times {\mathrm{929}}^1$

素因数の和:1145

約数の個数: 24

約数和(自身を含む): 318818880

約数和(自身を除く): 111847899

約数列:

[1, 3, 7, 21, 103, 309, 721, 929, 2163, 2787, 6503, 10609, 19509, 31827, 74263, 95687, 222789, 287061, 669809, 2009427, 9855761, 29567283, 68990327, 206970981]

約数ペア:

[(1, 206970981), (3, 68990327), (7, 29567283), (21, 9855761), (103, 2009427), (309, 669809), (721, 287061), (929, 222789), (2163, 95687), (2787, 74263), (6503, 31827), (10609, 19509)]