1285290721

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{289937}}^1$

素因数の和:289992

約数の個数: 16

約数和(自身を含む): 1558706688

約数和(自身を除く): 273415967

約数列:

[1, 11, 13, 31, 143, 341, 403, 4433, 289937, 3189307, 3769181, 8988047, 41460991, 98868517, 116844611, 1285290721]

約数ペア:

[(1, 1285290721), (11, 116844611), (13, 98868517), (31, 41460991), (143, 8988047), (341, 3769181), (403, 3189307), (4433, 289937)]