19935711

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{457}}^1$

素因数の和:631

約数の個数: 24

約数和(自身を含む): 29865264

約数和(自身を除く): 9929553

約数列:

[1, 3, 9, 37, 111, 131, 333, 393, 457, 1179, 1371, 4113, 4847, 14541, 16909, 43623, 50727, 59867, 152181, 179601, 538803, 2215079, 6645237, 19935711]

約数ペア:

[(1, 19935711), (3, 6645237), (9, 2215079), (37, 538803), (111, 179601), (131, 152181), (333, 59867), (393, 50727), (457, 43623), (1179, 16909), (1371, 14541), (4113, 4847)]