247202319

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{3989}}^1$

素因数の和:4239

約数の個数: 32

約数和(自身を含む): 407554560

約数和(自身を除く): 160352241

約数列:

[1, 3, 7, 13, 21, 39, 91, 227, 273, 681, 1589, 2951, 3989, 4767, 8853, 11967, 20657, 27923, 51857, 61971, 83769, 155571, 362999, 905503, 1088997, 2716509, 6338521, 11771539, 19015563, 35314617, 82400773, 247202319]

約数ペア:

[(1, 247202319), (3, 82400773), (7, 35314617), (13, 19015563), (21, 11771539), (39, 6338521), (91, 2716509), (227, 1088997), (273, 905503), (681, 362999), (1589, 155571), (2951, 83769), (3989, 61971), (4767, 51857), (8853, 27923), (11967, 20657)]