81805773

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{487}}^1$

素因数の和:937

約数の個数: 32

約数和(自身を含む): 131799040

約数和(自身を除く): 49993267

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 421, 487, 1263, 1461, 2947, 3409, 7999, 8841, 9253, 10227, 23997, 27759, 55993, 64771, 167979, 194313, 205027, 615081, 1435189, 3895513, 4305567, 11686539, 27268591, 81805773]

約数ペア:

[(1, 81805773), (3, 27268591), (7, 11686539), (19, 4305567), (21, 3895513), (57, 1435189), (133, 615081), (399, 205027), (421, 194313), (487, 167979), (1263, 64771), (1461, 55993), (2947, 27759), (3409, 23997), (7999, 10227), (8841, 9253)]