21821512

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{66529}}^1$

素因数の和:66576

約数の個数: 16

約数和(自身を含む): 41913900

約数和(自身を除く): 20092388

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 66529, 133058, 266116, 532232, 2727689, 5455378, 10910756, 21821512]

約数ペア:

[(1, 21821512), (2, 10910756), (4, 5455378), (8, 2727689), (41, 532232), (82, 266116), (164, 133058), (328, 66529)]