291238983

素因数分解:

$3^4\times 7^1\times {\mathrm{513649}}^1$

素因数の和:513668

約数の個数: 20

約数和(自身を含む): 497213200

約数和(自身を除く): 205974217

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 513649, 1540947, 3595543, 4622841, 10786629, 13868523, 32359887, 41605569, 97079661, 291238983]

約数ペア:

[(1, 291238983), (3, 97079661), (7, 41605569), (9, 32359887), (21, 13868523), (27, 10786629), (63, 4622841), (81, 3595543), (189, 1540947), (567, 513649)]