28556559

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{457}}^1$

素因数の和:647

約数の個数: 24

約数和(自身を含む): 42440112

約数和(自身を除く): 13883553

約数列:

[1, 3, 9, 53, 131, 159, 393, 457, 477, 1179, 1371, 4113, 6943, 20829, 24221, 59867, 62487, 72663, 179601, 217989, 538803, 3172951, 9518853, 28556559]

約数ペア:

[(1, 28556559), (3, 9518853), (9, 3172951), (53, 538803), (131, 217989), (159, 179601), (393, 72663), (457, 62487), (477, 59867), (1179, 24221), (1371, 20829), (4113, 6943)]