2897139

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:219

約数の個数: 32

約数和(自身を含む): 4769280

約数和(自身を除く): 1872141

約数列:

[1, 3, 7, 19, 21, 53, 57, 133, 137, 159, 371, 399, 411, 959, 1007, 1113, 2603, 2877, 3021, 7049, 7261, 7809, 18221, 21147, 21783, 50827, 54663, 137959, 152481, 413877, 965713, 2897139]

約数ペア:

[(1, 2897139), (3, 965713), (7, 413877), (19, 152481), (21, 137959), (53, 54663), (57, 50827), (133, 21783), (137, 21147), (159, 18221), (371, 7809), (399, 7261), (411, 7049), (959, 3021), (1007, 2877), (1113, 2603)]