20470879

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:187

約数の個数: 32

約数和(自身を含む): 25510464

約数和(自身を除く): 5039585

約数列:

[1, 11, 13, 37, 53, 73, 143, 407, 481, 583, 689, 803, 949, 1961, 2701, 3869, 5291, 7579, 10439, 21571, 25493, 29711, 35113, 42559, 50297, 143153, 280423, 386243, 553267, 1574683, 1860989, 20470879]

約数ペア:

[(1, 20470879), (11, 1860989), (13, 1574683), (37, 553267), (53, 386243), (73, 280423), (143, 143153), (407, 50297), (481, 42559), (583, 35113), (689, 29711), (803, 25493), (949, 21571), (1961, 10439), (2701, 7579), (3869, 5291)]