42809781

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{7103}}^1$

素因数の和:7161

約数の個数: 24

約数和(自身を含む): 68027904

約数和(自身を除く): 25218123

約数列:

[1, 3, 7, 21, 41, 49, 123, 147, 287, 861, 2009, 6027, 7103, 21309, 49721, 149163, 291223, 348047, 873669, 1044141, 2038561, 6115683, 14269927, 42809781]

約数ペア:

[(1, 42809781), (3, 14269927), (7, 6115683), (21, 2038561), (41, 1044141), (49, 873669), (123, 348047), (147, 291223), (287, 149163), (861, 49721), (2009, 21309), (6027, 7103)]