28809729

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{389}}^1$

素因数の和:622

約数の個数: 32

約数和(自身を含む): 46300800

約数和(自身を除く): 17491071

約数列:

[1, 3, 9, 13, 27, 39, 117, 211, 351, 389, 633, 1167, 1899, 2743, 3501, 5057, 5697, 8229, 10503, 15171, 24687, 45513, 74061, 82079, 136539, 246237, 738711, 1067027, 2216133, 3201081, 9603243, 28809729]

約数ペア:

[(1, 28809729), (3, 9603243), (9, 3201081), (13, 2216133), (27, 1067027), (39, 738711), (117, 246237), (211, 136539), (351, 82079), (389, 74061), (633, 45513), (1167, 24687), (1899, 15171), (2743, 10503), (3501, 8229), (5057, 5697)]