20989108

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{24181}}^1$

素因数の和:24223

約数の個数: 24

約数和(自身を含む): 43334144

約数和(自身を除く): 22345036

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 24181, 48362, 96724, 169267, 338534, 677068, 749611, 1499222, 2998444, 5247277, 10494554, 20989108]

約数ペア:

[(1, 20989108), (2, 10494554), (4, 5247277), (7, 2998444), (14, 1499222), (28, 749611), (31, 677068), (62, 338534), (124, 169267), (217, 96724), (434, 48362), (868, 24181)]