20896839

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{439}}^1$

素因数の和:532

約数の個数: 32

約数和(自身を含む): 32524800

約数和(自身を除く): 11627961

約数列:

[1, 3, 9, 27, 41, 43, 123, 129, 369, 387, 439, 1107, 1161, 1317, 1763, 3951, 5289, 11853, 15867, 17999, 18877, 47601, 53997, 56631, 161991, 169893, 485973, 509679, 773957, 2321871, 6965613, 20896839]

約数ペア:

[(1, 20896839), (3, 6965613), (9, 2321871), (27, 773957), (41, 509679), (43, 485973), (123, 169893), (129, 161991), (369, 56631), (387, 53997), (439, 47601), (1107, 18877), (1161, 17999), (1317, 15867), (1763, 11853), (3951, 5289)]