205929891

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{71}}^2\times {\mathrm{89}}^1$

素因数の和:257

約数の個数: 48

約数和(自身を含む): 331322400

約数和(自身を除く): 125392509

約数列:

[1, 3, 9, 17, 27, 51, 71, 89, 153, 213, 267, 459, 639, 801, 1207, 1513, 1917, 2403, 3621, 4539, 5041, 6319, 10863, 13617, 15123, 18957, 32589, 40851, 45369, 56871, 85697, 107423, 136107, 170613, 257091, 322269, 448649, 771273, 966807, 1345947, 2313819, 2900421, 4037841, 7627033, 12113523, 22881099, 68643297, 205929891]

約数ペア:

[(1, 205929891), (3, 68643297), (9, 22881099), (17, 12113523), (27, 7627033), (51, 4037841), (71, 2900421), (89, 2313819), (153, 1345947), (213, 966807), (267, 771273), (459, 448649), (639, 322269), (801, 257091), (1207, 170613), (1513, 136107), (1917, 107423), (2403, 85697), (3621, 56871), (4539, 45369), (5041, 40851), (6319, 32589), (10863, 18957), (13617, 15123)]