209009079

素因数分解:

$3^4\times {\mathrm{643}}^1\times {\mathrm{4013}}^1$

素因数の和:4668

約数の個数: 20

約数和(自身を含む): 312786936

約数和(自身を除く): 103777857

約数列:

[1, 3, 9, 27, 81, 643, 1929, 4013, 5787, 12039, 17361, 36117, 52083, 108351, 325053, 2580359, 7741077, 23223231, 69669693, 209009079]

約数ペア:

[(1, 209009079), (3, 69669693), (9, 23223231), (27, 7741077), (81, 2580359), (643, 325053), (1929, 108351), (4013, 52083), (5787, 36117), (12039, 17361)]