20800197

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{727}}^1$

素因数の和:778

約数の個数: 36

約数和(自身を含む): 34865376

約数和(自身を除く): 14065179

約数列:

[1, 3, 9, 11, 17, 33, 51, 99, 153, 187, 289, 561, 727, 867, 1683, 2181, 2601, 3179, 6543, 7997, 9537, 12359, 23991, 28611, 37077, 71973, 111231, 135949, 210103, 407847, 630309, 1223541, 1890927, 2311133, 6933399, 20800197]

約数ペア:

[(1, 20800197), (3, 6933399), (9, 2311133), (11, 1890927), (17, 1223541), (33, 630309), (51, 407847), (99, 210103), (153, 135949), (187, 111231), (289, 71973), (561, 37077), (727, 28611), (867, 23991), (1683, 12359), (2181, 9537), (2601, 7997), (3179, 6543)]