639778821

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{55871}}^1$

素因数の和:56232

約数の個数: 16

約数和(自身を含む): 933285888

約数和(自身を除く): 293507067

約数列:

[1, 3, 11, 33, 347, 1041, 3817, 11451, 55871, 167613, 614581, 1843743, 19387237, 58161711, 213259607, 639778821]

約数ペア:

[(1, 639778821), (3, 213259607), (11, 58161711), (33, 19387237), (347, 1843743), (1041, 614581), (3817, 167613), (11451, 55871)]