28706391

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{7723}}^1$

素因数の和:7795

約数の個数: 24

約数和(自身を含む): 48197760

約数和(自身を除く): 19491369

約数列:

[1, 3, 7, 9, 21, 59, 63, 177, 413, 531, 1239, 3717, 7723, 23169, 54061, 69507, 162183, 455657, 486549, 1366971, 3189599, 4100913, 9568797, 28706391]

約数ペア:

[(1, 28706391), (3, 9568797), (7, 4100913), (9, 3189599), (21, 1366971), (59, 486549), (63, 455657), (177, 162183), (413, 69507), (531, 54061), (1239, 23169), (3717, 7723)]