12556989

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{457}}^1$

素因数の和:577

約数の個数: 24

約数和(自身を含む): 18862272

約数和(自身を除く): 6305283

約数列:

[1, 3, 9, 43, 71, 129, 213, 387, 457, 639, 1371, 3053, 4113, 9159, 19651, 27477, 32447, 58953, 97341, 176859, 292023, 1395221, 4185663, 12556989]

約数ペア:

[(1, 12556989), (3, 4185663), (9, 1395221), (43, 292023), (71, 176859), (129, 97341), (213, 58953), (387, 32447), (457, 27477), (639, 19651), (1371, 9159), (3053, 4113)]