21255224

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{139837}}^1$

素因数の和:139862

約数の個数: 16

約数和(自身を含む): 41951400

約数和(自身を除く): 20696176

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 139837, 279674, 559348, 1118696, 2656903, 5313806, 10627612, 21255224]

約数ペア:

[(1, 21255224), (2, 10627612), (4, 5313806), (8, 2656903), (19, 1118696), (38, 559348), (76, 279674), (152, 139837)]