1780821651

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{2633}}^1$

素因数の和:2800

約数の個数: 48

約数和(自身を含む): 2853823104

約数和(自身を除く): 1073001453

約数列:

[1, 3, 7, 21, 43, 49, 107, 129, 147, 301, 321, 749, 903, 2107, 2247, 2633, 4601, 5243, 6321, 7899, 13803, 15729, 18431, 32207, 55293, 96621, 113219, 129017, 225449, 281731, 339657, 387051, 676347, 792533, 845193, 1972117, 2377599, 5547731, 5916351, 12114433, 13804819, 16643193, 36343299, 41414457, 84801031, 254403093, 593607217, 1780821651]

約数ペア:

[(1, 1780821651), (3, 593607217), (7, 254403093), (21, 84801031), (43, 41414457), (49, 36343299), (107, 16643193), (129, 13804819), (147, 12114433), (301, 5916351), (321, 5547731), (749, 2377599), (903, 1972117), (2107, 845193), (2247, 792533), (2633, 676347), (4601, 387051), (5243, 339657), (6321, 281731), (7899, 225449), (13803, 129017), (15729, 113219), (18431, 96621), (32207, 55293)]