20771919

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{6221}}^1$

素因数の和:6287

約数の個数: 24

約数和(自身を含む): 34942752

約数和(自身を除く): 14170833

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 371, 477, 1113, 3339, 6221, 18663, 43547, 55989, 130641, 329713, 391923, 989139, 2307991, 2967417, 6923973, 20771919]

約数ペア:

[(1, 20771919), (3, 6923973), (7, 2967417), (9, 2307991), (21, 989139), (53, 391923), (63, 329713), (159, 130641), (371, 55989), (477, 43547), (1113, 18663), (3339, 6221)]