19001983

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{463}}^1$

素因数の和:535

約数の個数: 32

約数和(自身を含む): 26191872

約数和(自身を除く): 7189889

約数列:

[1, 7, 11, 13, 41, 77, 91, 143, 287, 451, 463, 533, 1001, 3157, 3241, 3731, 5093, 5863, 6019, 18983, 35651, 41041, 42133, 66209, 132881, 208813, 246779, 463463, 1461691, 1727453, 2714569, 19001983]

約数ペア:

[(1, 19001983), (7, 2714569), (11, 1727453), (13, 1461691), (41, 463463), (77, 246779), (91, 208813), (143, 132881), (287, 66209), (451, 42133), (463, 41041), (533, 35651), (1001, 18983), (3157, 6019), (3241, 5863), (3731, 5093)]