138457921

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{3391}}^1$

素因数の和:3724

約数の個数: 16

約数和(自身を含む): 167157760

約数和(自身を除く): 28699839

約数列:

[1, 7, 19, 133, 307, 2149, 3391, 5833, 23737, 40831, 64429, 451003, 1041037, 7287259, 19779703, 138457921]

約数ペア:

[(1, 138457921), (7, 19779703), (19, 7287259), (133, 1041037), (307, 451003), (2149, 64429), (3391, 40831), (5833, 23737)]