206820018

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{161831}}^1$

素因数の和:161910

約数の個数: 24

約数和(自身を含む): 454424256

約数和(自身を除く): 247604238

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 161831, 323662, 485493, 970986, 1456479, 2912958, 11490001, 22980002, 34470003, 68940006, 103410009, 206820018]

約数ペア:

[(1, 206820018), (2, 103410009), (3, 68940006), (6, 34470003), (9, 22980002), (18, 11490001), (71, 2912958), (142, 1456479), (213, 970986), (426, 485493), (639, 323662), (1278, 161831)]