2149559991

素因数分解:

$3^3\times {\mathrm{199}}^1\times {\mathrm{400067}}^1$

素因数の和:400275

約数の個数: 16

約数和(自身を含む): 3200544000

約数和(自身を除く): 1050984009

約数列:

[1, 3, 9, 27, 199, 597, 1791, 5373, 400067, 1200201, 3600603, 10801809, 79613333, 238839999, 716519997, 2149559991]

約数ペア:

[(1, 2149559991), (3, 716519997), (9, 238839999), (27, 79613333), (199, 10801809), (597, 3600603), (1791, 1200201), (5373, 400067)]