20718892

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{1523}}^1$

素因数の和:1725

約数の個数: 24

約数和(自身を含む): 38404800

約数和(自身を除く): 17685908

約数列:

[1, 2, 4, 19, 38, 76, 179, 358, 716, 1523, 3046, 3401, 6092, 6802, 13604, 28937, 57874, 115748, 272617, 545234, 1090468, 5179723, 10359446, 20718892]

約数ペア:

[(1, 20718892), (2, 10359446), (4, 5179723), (19, 1090468), (38, 545234), (76, 272617), (179, 115748), (358, 57874), (716, 28937), (1523, 13604), (3046, 6802), (3401, 6092)]