20667892

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{479}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 43868160

約数和(自身を除く): 23200268

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 67, 92, 134, 161, 268, 322, 469, 479, 644, 938, 958, 1541, 1876, 1916, 3082, 3353, 6164, 6706, 10787, 11017, 13412, 21574, 22034, 32093, 43148, 44068, 64186, 77119, 128372, 154238, 224651, 308476, 449302, 738139, 898604, 1476278, 2952556, 5166973, 10333946, 20667892]

約数ペア:

[(1, 20667892), (2, 10333946), (4, 5166973), (7, 2952556), (14, 1476278), (23, 898604), (28, 738139), (46, 449302), (67, 308476), (92, 224651), (134, 154238), (161, 128372), (268, 77119), (322, 64186), (469, 44068), (479, 43148), (644, 32093), (938, 22034), (958, 21574), (1541, 13412), (1876, 11017), (1916, 10787), (3082, 6706), (3353, 6164)]