21000978836

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{4415681}}^1$

素因数の和:4415755

約数の個数: 24

約数和(自身を含む): 38946315240

約数和(自身を除く): 17945336404

約数列:

[1, 2, 4, 29, 41, 58, 82, 116, 164, 1189, 2378, 4756, 4415681, 8831362, 17662724, 128054749, 181042921, 256109498, 362085842, 512218996, 724171684, 5250244709, 10500489418, 21000978836]

約数ペア:

[(1, 21000978836), (2, 10500489418), (4, 5250244709), (29, 724171684), (41, 512218996), (58, 362085842), (82, 256109498), (116, 181042921), (164, 128054749), (1189, 17662724), (2378, 8831362), (4756, 4415681)]