19127475

素因数分解:

$3^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{659}}^1$

素因数の和:721

約数の個数: 48

約数和(自身を含む): 36009600

約数和(自身を除く): 16882125

約数列:

[1, 3, 5, 9, 15, 25, 27, 43, 45, 75, 129, 135, 215, 225, 387, 645, 659, 675, 1075, 1161, 1935, 1977, 3225, 3295, 5805, 5931, 9675, 9885, 16475, 17793, 28337, 29025, 29655, 49425, 85011, 88965, 141685, 148275, 255033, 425055, 444825, 708425, 765099, 1275165, 2125275, 3825495, 6375825, 19127475]

約数ペア:

[(1, 19127475), (3, 6375825), (5, 3825495), (9, 2125275), (15, 1275165), (25, 765099), (27, 708425), (43, 444825), (45, 425055), (75, 255033), (129, 148275), (135, 141685), (215, 88965), (225, 85011), (387, 49425), (645, 29655), (659, 29025), (675, 28337), (1075, 17793), (1161, 16475), (1935, 9885), (1977, 9675), (3225, 5931), (3295, 5805)]