20091105

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3461}}^1$

素因数の和:3518

約数の個数: 32

約数和(自身を含む): 36558720

約数和(自身を除く): 16467615

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 215, 387, 645, 1161, 1935, 3461, 5805, 10383, 17305, 31149, 51915, 93447, 148823, 155745, 446469, 467235, 744115, 1339407, 2232345, 4018221, 6697035, 20091105]

約数ペア:

[(1, 20091105), (3, 6697035), (5, 4018221), (9, 2232345), (15, 1339407), (27, 744115), (43, 467235), (45, 446469), (129, 155745), (135, 148823), (215, 93447), (387, 51915), (645, 31149), (1161, 17305), (1935, 10383), (3461, 5805)]