1285386489

素因数分解:

$3^4\times {\mathrm{647}}^1\times {\mathrm{24527}}^1$

素因数の和:25186

約数の個数: 20

約数和(自身を含む): 1923191424

約数和(自身を除く): 637804935

約数列:

[1, 3, 9, 27, 81, 647, 1941, 5823, 17469, 24527, 52407, 73581, 220743, 662229, 1986687, 15868969, 47606907, 142820721, 428462163, 1285386489]

約数ペア:

[(1, 1285386489), (3, 428462163), (9, 142820721), (27, 47606907), (81, 15868969), (647, 1986687), (1941, 662229), (5823, 220743), (17469, 73581), (24527, 52407)]