21711796

素因数分解:

$2^2\times {\mathrm{41}}^2\times {\mathrm{3229}}^1$

素因数の和:3315

約数の個数: 18

約数和(自身を含む): 38957030

約数和(自身を除く): 17245234

約数列:

[1, 2, 4, 41, 82, 164, 1681, 3229, 3362, 6458, 6724, 12916, 132389, 264778, 529556, 5427949, 10855898, 21711796]

約数ペア:

[(1, 21711796), (2, 10855898), (4, 5427949), (41, 529556), (82, 264778), (164, 132389), (1681, 12916), (3229, 6724), (3362, 6458)]