21187276

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{7187}}^1$

素因数の和:7269

約数の個数: 24

約数和(自身を含む): 41057856

約数和(自身を除く): 19870580

約数列:

[1, 2, 4, 11, 22, 44, 67, 134, 268, 737, 1474, 2948, 7187, 14374, 28748, 79057, 158114, 316228, 481529, 963058, 1926116, 5296819, 10593638, 21187276]

約数ペア:

[(1, 21187276), (2, 10593638), (4, 5296819), (11, 1926116), (22, 963058), (44, 481529), (67, 316228), (134, 158114), (268, 79057), (737, 28748), (1474, 14374), (2948, 7187)]